British Geological Survey maps - their characteristics and history
Under construction
Introduction
This page describes the historical paper-based mapping produced by BGS between 1832 and c 2010. The most recent mapping is now only updated and delivered digitally without production of a printed product. The latest mapping is available via the BGS Onshore and Offshore GeoIndex pages and may differ significantly from the older printed maps described here. Professional users can also use GeoReports or Custom 1:50,000 geological map services.
Large-scale maps: the six-inch to the mile and 1:10,000 series
Introduction
Maps can be grouped into two main series based on the underlying Ordnance Survey base maps onto which the geology is drawn
- County Series
- National Grid series
The formal titles of the map series are:
England and Wales
- Geological Survey of England and Wales County Series 1:10560
- Geological Survey of England and Wales County Series, New Meridian 1:10560
Isle of Man
- Geological Survey of the Isle of Man 1:10560
Scotland
- Geological Survey of Scotland County Series 1:10560
- Geological Survey of Scotland County Series, New Series 1:10560
- Geological Survey of Scotland County Series, New Series, New Meridian 1:10560
National Grid maps [covers the whole of Great Britain]
- Geological Survey of Great Britain National Grid Series 1:10560/10000
At the beginning of the Geological Survey the primary mapping was undertaken at one inch to one mile scale. From the 1850s it became the intention that the geological survey of the country would proceed at the six inch to the mile (1:10,560) scale but the chief printed product would continue to be the one inch to one mile (1:63,360) scale geological maps. However, key areas such as the coalfields and London would be formally published as printed sheets at 1:10,560 scale. The majority of 1:10,560 maps remained unpublished and copies were made available for public consultation in the Survey offices.
Note on variability of the collections
It is important to be aware, that the database/catalogue of maps is one of individual physical maps. Each physical map having an entry in the database and in many cases with an associated scan. For instance, if three copies of the same map were held, one in the three main offices, there will be three entries in the database, and possibly three scans. It is also possible multiple variants exist for any given sheet number, some sheets may have up to 35 variants. The reasons for variants are many, they may occur because of:
- Different editions
- Copies held at different Survey office locations
- Copies held at different locations at the same site e.g. a copy held in the Drawing Office, Library, NGRC (Records)
- Copies of early hand coloured printed maps - while they may have the same basic metadata, depending on when they were created they may have had minor changes added. Where this is the case changes are in colour of geological units or new/amended engraved geological boundaries. Changes can be minor and not documented.
- Copies in different states e.g. a Standard (official approved maps), Dyeline master (created for reproduction), Dyeline print (printed for the various Survey offices), hand-coloured dyeline print.
- Uncoloured standards or uncoloured printed 'lines' editions of printed maps were often manually coloured as separate solid and drift sheets for public consultation in the Survey offices. Being coloured these maps are easier to use than the original uncoloured variants.
- Copies of Standards that were created to allow manuscript additions to be made without changing the approved and signed Standard. Often called Correction copies, though unapproved ad hoc sheets with additions will also be encountered.
- Later digitally created maps have an Electronic master and Digital Deposit copy (both have slightly different marginal information).
County Series maps
England and Wales
- Geological Survey of England and Wales County Series 1:10560
- Geological Survey of England and Wales County Series, New Meridian 1:10560
Isle of Man
- Geological Survey of the Isle of Man 1:10560
Scotland
- Geological Survey of Scotland County Series 1:10560
- Geological Survey of Scotland County Series, New Series 1:10560
- Geological Survey of Scotland County Series, New Series, New Meridian 1:10560
The standard large scale map for recording field survey information was for much of the Geological Survey's existence, the 1:10,560 or 6 inches to 1 mile Ordnance Survey maps. An O.S. map would be cut up to convenient sized parts for the field mapping. On return to the office the geology would be transferred to a complete County series map, this would then be known, after approval as a 'Standard' or 'Clean copy' in Scotland. The County Series maps are indexed numerically under individual counties. Each county is a sub-series with further sub series depending on the OS base map series used.
Their map projection was related to a central meridian for each county or groups of counties, so each had its own sheet numbering system. For some counties the meridian changed and the OS base maps and subsequent geological maps were issued on different sheetlines and numbering system. The new sheetlines/sheet numbers bear no relation to the sheetlines/sheet numbers of the supeceded series. For some areas users will need to check the different series for their chosen area Checking index maps to ensure coverage and sheet numbers. A useful index map/sheet locator is available here
The County Series were issued as either 'Full Sheets' and 'Quarter Sheets'— the latter carrying the suffixes NW, NE, SW, and SE—are more recent, the former, full sheets, mainly at earlier periods of production. Over 10,000 sheet areas are covered if all the editions and amended or superseded versions were taken into account there are over 30,000 map sheets.
A considerable number of sheets, particularly in the coalfield counties such as Yorkshire, Lancashire, and Durham were published as monochrome maps (from engraved copper or lithographic plates) and subsequently hand coloured. Sheets for the London area were eventually published and printed in colour. The unpublished maps can appear in many formats, a list of forms is given below.
Gallery of County Series map types
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Full sheet, published, hand-coloured (watercolours). -
Full sheet, published, uncoloured "lines" edition. -
Full sheet, unpublished, manuscript lines, hand-coloured (watercolours) "Standard" -
Quarter sheet, published, hand-coloured (watercolours). -
Quarter sheet, unpublished, manuscript lines, hand-coloured (watercolours). "Clean Copy" -
Quarter sheet, published "lines" edition (uncoloured) -
Quarter sheet, published, printed in colour. Note the sheet number prefix "N" - designates the map as a "New Meridian" sheet
National Grid series maps
National Grid maps [covers the whole of Great Britain]
- Geological Survey of Great Britain National Grid Series 1:10560/10000
In the 1960s, the County maps started to be replaced by 6 inches to 1 mile National Grid sheets based on the four quadrants (NW, NE, SW, SE) of a 10 km Ordnance Survey National Grid square. The latter are defined by the 10 km intervals of the larger 100 km square identified by a specific two-letter code. Each map is thus denoted by a unique reference, e.g. SP 29 NW. SP=100 km square; 29=10 km square; NW=5 km square.
A considerable number of these were printed lithographically, mostly in monochrome, sometimes called 'lines edition' some were also in colour.
In the late 1970s, conversion to the metric 1:10,000 scale was introduced and became the standard large-scale format for field mapping. Formal publishing was abandoned and replaced by dyeline or photographic processes as a method of reproduction, maps were printed on demand rather than printing and holding stocks. On completion of each sheet, it became customary to prepare a short descriptive report providing notes and local details of the geology for each map sheet area. These were issued as 'open-file' in the Survey Technical Report series.
A very small number of remote areas were mapped at 1:25,000 scale, the subsequent maps are also at 1:25,000 scale and are included in this series.
Areal coverage provided by the National Grid series of large-scale maps is limited in extent and the preceding County series of six-inch maps can still be the most up to date map available for some areas.
Gallery of National Grid series maps:
-
Published sheet, printed in colour. -
Unpublished, Fairdrawn, hand coloured - watercolours, signed Clean Copy (Standard) -
Unpublished "Standard", fairdrawn, hand-coloured with crayon -
Unpublished, Electronic Master. TQ66NE -
Unpublished, Digital Deposit Copy. A digitally produced paper "Standard" - with signatures. TQ66NE
Key attributes of 1:10,560/1:10000 maps
Geological edition
- Solid - later Bedrock geology
- Drift - later Superficial geology
- Composite (combined Solid and drift/Bedrock/superficial)
The type of approval of the map
The type of approval ranges from Unapproved through to Fully approved (by Assistant Director) for manuscript/unpublished maps. An extra level of approval would be given any sheets that were published and printed.
- Published
- Fully approved (by Assistant Director)
- Lines only approved (by Assistant Director or Regional Geologist)
- Regional Geologist approved
- Project Leader approved
- Unapproved
Survey type
- Maps could be the result of the Primary (first) survey or subsequent surveys or revisions. Surveys, revisions etc could be of a full sheet, part sheet geographically or part sheet stratigraphically. An example of the latter is say only the Carboniferous was revised not other geological periods represented on the map.
Area mapped (land area mapped geologically)
- All land area mapped — the whole sheet has been mapped
- Part of land area mapped — while mapping was undertaken at 1:10,560/1:10000 the standard published output was the 1"/1:50,000, the mapped geology may stop at a 1"/1:50,000 boundary
- Up to county boundary — a result of county based sheet lines. The other part could be on a sheet from the other county series.
Dates on maps — The following types of dates may appear on a map:
- Survey date/Revision dates: Year or range of dates of survey or resurvey or revisions.
- Published date: Year of publication or release of the geological map
- Copyright date: This is the year of the geological copyright and must not be confused with the Ordnance Survey topographical copyright year.
- Approval date: The Assistant Director’s (AD) approval may be given on a stamp on standards. It should consist of a signature and a date, occasionally it is the signature only. If an AD signature and date is not available but an Regional Geologist’s (RG) signature and date is - then this date is included in this field and an appropriate entry is inserted in the Approval status field (see entry for Approval status field). Only maps with manuscript signatures, physically signed by AD or RG are considered approved. Photocopying and dyeline processes will reproduce the signatures on copies, but this does not infer the copy is an approved map. Some of the Scottish maps have a signature on the reverse of the map and this is obviously not transferred to any copies made from it.
Form — Given the long history of the series, back to the mid 1800s the form of originals, copies etc has varied. The following is a list of forms that will appear in the collection.
- Coloured litho
- Coloured manuscript
- Coloured photograph of coloured litho
- Coloured photograph of standard copy
- Coloured photograph of standard
- Digital deposit copy
- Dyeline master
- Dyeline print
- Electronic (digital) master
- Electronic (digital) print
- Monochrome photograph
- Monochrome photograph of a coloured litho
- Monochrome photograph of a coloured manuscript
- Monochrome photograph of a manuscript
- Monochrome photograph of a standard copy
- Monochrome photograph of a standard original
- Monochrome photograph of an uncoloured litho
- Manuscript
- Photographic negative
- Published litho
- Standard copy
- Standard original
- Uncoloured litho
- Photocopy
- Photocopy of a coloured litho
- Photocopy of a coloured manuscript
- Photocopy of a standard copy
- Photocopy of a standard original
- Wipe-on
Base material for the maps
- Electronically held (digital) information
- Photographic negative
- Opaque plastic
- Paper
- Transparent plastic
Map form — The process which has generated the base material for the map:
- Dyeline
- Electronically held (digital) information
- Lithographic
- Photographic
- Elecrostatic or inkjet plot
- Wipe on
- Photocopy
Geological information — The way the geological information is portrayed:
- Fairdrawn - professionally drawn map - near the level at which a map could be published
- Manuscript - hand drawn
- Sometimes a map maybe a mix of Fairdrawn and manuscript
Inked geology — The geology inked on a map confers a greater status of permanence and authority
- All Inked
- Some
- Up to county boundary
- None
Coloured state of the map — The amount of colouring on a map can vary:
- All coloured
- Part coloured
- Up to county boundary
- Uncoloured
Colouring type — Type of colouring on the map:
- Toned (printed or electronically produced)
- Water coloured - common for the majority of the history of the series
- Crayoned
- Edged - colour depicted mostly close to a boundary
- None
Digital attribution
- No digital data
- Unattributed map face data
- Partly attributed map face data
- Fully attributed map face data (the marginalia may also be available)
Status flag
- Standard — This is the official approved and signed copy of the geology of an area. In Scotland they were called 'Clean Copy'
- Digital Deposit Copy — A paper output of the 'Master' prepared for deposit for public and staff consultation in the BGS offices
- Master (dyeline or digital master) — More recently when a sheet was produced digitally, this would be the master file.
- Correction copy — After a 'Standard' had been approved and signed, no extra additions to the Standard were allowed. Any new additions were made on a copy of the standard known as the 'Correction copy'. After significant change and after approval a new Standard was created.
Field slips
Manuscript maps drawn in the field during geological mapping. Known variously as "Field slips", "Field maps", "Standard Field Maps". The base map were Ordnance Survey topographic maps. The OS maps were cut up to fit Survey issue field mapping cases. While early Survey mapping was undertaken at the 1" scale, the majority of mapping progressed at 1:10,560 or 1:10,000 scale and utilized OS County series topographic maps as they became available, later the National Grid topographic maps were used as base maps. A few remote areas were mapped on 1:25,000 scale. Some field slips used aerial photographs as a base map onto which the geology was added.
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Example National Grid field slip. Front. -
Example National Grid field slip with unusually detailed notes. Back. -
Example County Series field slip, Sutherland 71 NW, c.1886. Front. -
Example County Series field slip, Sutherland 71 NW, c.1886. Back. -
Example National Grid field slip
Applied Geology Mapping
A series of thematic maps of mostly urban areas. Variously called Applied Geology Mapping (AGM), Environmental Geology Maps (EGM) or Planning for Development maps they were created with funding supplied by Department of the Environment, Transport and the Regions (DETR) in the 1990s. Maps were issued predominantly at 1:10,000 or 1:25,000 scale and included maps of up to 22 themes for an area. Themes include simplified bedrock and superficial maps, drift thickness, drift lithology, rockhead contours and a range of mining related themes. Each area had its own custom set of maps and were issued with an accompanying BGS Technical Report. Maps and report were sometimes issued as a pack and for some areas maps and report were available separately.
A full list is available on: Applied Geology Mapping – a catalogue of the available maps and reports
1:63 360/1:50 000 scale geological maps
Introduction
The 1:63 360/1:50 000 Series of geological maps are generally considered to be the most useful geological maps, providing comprehensive information suitable for a wide range of purposes and at a convenient scale: maps are available for most of the onshore areas of Great Britain.
Geological Survey of England and Wales 1:63,360 geological map series [Old Series]
The first 1:63,360 geological map series produced by the Survey in England and Wales. Sheetlines are based on the Ordnance Survey 'One-inch Old Series map of England and Wales' series sheetlines. Consists of sheets 1-110 with Sheet 1 starting North-east of London and then sheet numbers increasing west to Cornwall and then North to the Scottish Border. Early sheets were issues as 'full sheets' later sheets were issues as 'Quarter sheets’ (NW,NE,SW,SE). Sheets are issues at the scale of one inch to one mile, 1:63,360. Sheets published without Glacial Drift are known as Solid Geology maps, others published with the Drift are known as the Drift Maps. Most early maps were issues hand-coloured, later sheets were colour-printed.
Most Sheetlines for this series differ to the later "New Series/1:50,000", however for the later Old Series of Northern England- Sheets Old Series 91 to 110, the sheets share the same sheetlines as the New Series but the numbering differ. The geological maps of this area were common to both series and carry two numbers referring to the Old (91-110) and the New Series (1-73) numbering respectively.
Up to 1854, the geological mapping was undertaken on one-inch base maps, the largest scale available at the time. As the survey advanced northwards it found the six northern counties had been mapped on the six-inch scale so the survey adopted this larger scale as the basis for field-work. Availability of six-inch base maps also heralded the start of systematic drift surveying.
Geological Survey of England and Wales 1:63,360/1:50,000 geological map series, New Series
The current 1:63,360/1:50,000 map series for England and Wales. Sheetlines are based on the Ordnance Survey One-inch New Series topographic maps. Sheets 1-360. Sheet 1 starting at the Scottish border and the numbering moving southwards to Cornwall and finally Scilly Isles. In the Northern Counties the early Quarter sheets Sheets 1-73 New Series were the same as Sheets 91 to 110 of the Old Series, These early geological maps carry two numbers referring to the Old and the New Series respectively. A small number of early sheets were hand-coloured and the New Series consists of mainly colour-printed sheets. Sheets were traditionally issues at 1:63,360 and in 1972 sheets started appearing at 1:50,000. From 1972-1999 sheets were variously newly published/reprinted at 1:63,360 or 1:50,000. 1:50,000 sheets are of two types: 1:63,360 maps photographically enlarged to 1:50,000 to form facsimile enlargements, or, new cartography at 1:50,000 - the latter bearing the additional series designation: 1:50 000 Series. A number of 'special sheets' are associated with this series e.g. Anglesey.
Geological Survey of Scotland, 1:63,360/1:50,000 geological map series
The current series for Scotland. Sheetlines are based on the Ordnance Survey First, Second, Third and Fourth Editions of the one-inch to one mile map of Scotland the sheet lines remaining the same though with minor changes. The Geological Survey used whatever was the latest topographic sheet available at the time. Sheets were traditionally issues at 1:63,360 until 1972 when sheets started appearing at 1:50,000 with 1:63,360 sheets continuing to be released up to 1990. 1:50,000 sheets are of two types: 1:63,360 maps photographically enlarged to 1:50,000, facsimile enlargements; new cartography at 1:50,000 - the latter bearing the additional series designation: 1:50 000 Series. For the latter the original sheet areas were split into East and West halves e.g. Sheet 32 one-inch to the mile became Sheet 32 E and 32 W sheets at 1:50,000. For the Outer Hebrides the original one-inch to one mile regular sheetlines were abandoned and replaced by a smaller number of 1:100,000 maps. A number of irregular area sheets were also introduced at the time of the change in scale to 1:50,000. 'Special sheets' in the same style mapping have been produced associated with this series e.g. Assynt, Glasgow region, Arran.:
Geographical coverage
The geographical areas covered by these maps is shown on the 'Index Map to 1:50 000 and 1:63 360 geological maps'.
For England, Wales and Northern. Ireland, map sheets normally cover an area 30 km east-west and 20 km north-south. Scottish sheets are often divided into East and West portions covering 20 km east-west and 30 km north-south (some older 'full' sheets also remain in print). 'Special' geological sheets, often covering more than one 'normal' map sheet, are produced for areas of major geological interest. For maps adjacent to the Scottish-English Border, the geology shown ends at the national border for example, English sheet E5 will show the geology to the south and east of the border, but not into Scotland.
The current geological map grids ('sheets') are based on early Ordnance Survey "One-inch-to-one-mile" (1:63 360 scale) grids, and are not related to the current OS 1:50 000 map areas, names or numbers.
Editions
The 1:50 000 Series maps present the results of full geological surveys, plus information from subsurface or geophysical investigations, etc: minor amendments may be made from time-to-time. The publication date may not always represent the survey date(s) which, for some sheets, may be significantly earlier. "One-inch-to-one-mile" (1:63 360) scale maps are still the current editions for numerous areas, and are indicated in the BGS Catalogue.
'Provisional' editions may include substantial, but not complete, revision of the geology, and are indicated in the BGS Catalogue by [P]. So-called 'Facsimile' editions are 1:50 000 scale reprints of earlier 1:63 360 scale maps: these are indicated in the Catalogue by 'F' after the date of the new edition.
Coastal geology maps
This sub-series shows the geology of near-shore areas, usually together with the adjacent onshore geology. For these maps the bedrock and superficial formations occurring offshore are currently classified as either Quaternary or Pre-Quaternary.
- Inner Thames Estuary — Pre-Quaternary and Quaternary Geology
- Inner Bristol Channel and Severn Estuary — Pre-Quaternary Geology
- Inner Bristol Channel and Severn Estuary — Pre-Quaternary and Quaternary Geology
- Solway East — Superficial with Simplified Bedrock
- Solway West — Superficial with Simplified Bedrock
Special sheets
A number of special sheets have been produced over time. For some, many editions have been published.
England and Wales
- Anglesey
- Bristol district
- Isle of Wight
- Isle of Man
- London district
- Nottingham
- Oxford district
Scotland
- Arran
- Assynt district
- Glasgow district
Map Formats
The 1:50 000 scale maps were normally produced as litho-printed, full-colour editions and in flat or folded formats. Provisional maps had an integral yellow cover; all other 1:50 000 (and 1:63 360) scale folded maps have a blue card cover attached. Some flat maps may be supplied as high-quality digital prints when stocks of litho-printed maps are exhausted. Digital prints/PDF's of out-of-print maps are available. (Contact the Sales Desk for information).
Classification of geological map versions
The 1:50 000 maps are often published in different versions, each showing particular attributes of the geology. Prior to 2004 maps were produced in Solid (S), Drift (D), Solid & Drift (S&D) and Solid with Drift (SwD) versions, although not all versions were produced for any one district. Since then, new editions have been published with the 'modern' classifications the new classifications are:
Bedrock (B) - show the pre-Quaternary geology, as it would appear if the superficial deposits were removed. Boundaries of superficial deposits may be omitted or shown only by pecked lines (formerly 'Solid').
Superficial Deposits (Sup) - show the Quaternary geology, usually unconsolidated deposits that include glacial and postglacial deposits; artificial deposits, such as landscaped, worked and made ground are also shown (formerly 'Drift').
Bedrock & Superficial Deposits (B&Sup) - show the bedrock and superficial deposits with equal emphasis. These maps give the best picture of the geology: geological boundaries and symbols for the surface outcrops of both bedrock and superficial deposits are shown, but details of bedrock geology are normally abridged (formerly 'Solid & Drift'). There is no modern equivalent to the former 'Solid with Drift' (SwD) maps).
For some districts two versions of the geology may be portrayed as separate panels on the same map. These 'combined map' editions may incorporate any of the geological versions described above and are indicated in the Catalogue as (B, B&Sup) or (S,D), as appropriate.
In-print maps, showing the earlier classifications (`Solid', 'Drift', etc), will continue to be available until new editions, with the new classifications, are published to replace them.
Important note: several maps (mostly of pre-1980 origin), labelled only as 'Solid' or 'Drift' on the map margins or cover have been re-classified to conform to 'contemporary standards'. See the table below.
The following table shows, in a simplified way, how the various classifications evolved and compares them to the currently used classifications; however, there may be variations for individual areas and maps.
| Geological features shown on map | Equivalent new classification (2004 onwards) | Pre-1975 may be marked | From 1975-2004 maps may be marked |
| Solid geology with no drift boundaries or information. | Bedrock | Solid | Solid |
| Solid geology with only the outlines of drift deposits marked. Minor drift deposits may be omitted. | No current equivalent | Solid | Solid with Drift |
| Solid geology outcrops & drift deposits all fully marked and coloured. Detailed information is given for concealed solid strata. | Bedrock & Superficial | Drift | Solid and Drift |
| Drift deposits fully marked and coloured; solid geology outcrops shown in full. Concealed solid strata may be simplified or omitted. | Superficial and Simplified Bedrock | Drift | Drift |
| Drift deposits shown in full. No information for bedrock strata whether outcropping or concealed'. | Superficial | Drift | Drift |
* Mostly applies to Scotland and Northern Ireland
Symbols on current maps
A full list of current symbols can be downloaded from:
Cartographic standard geological symbol index Version 3 Publications Production Research Report RR/01/01
Index to colours used on geological maps
This is not a formal series but rather a collection of 'Index to colours' that was issued at various times to indicate the colours used on Geological Survey maps.
As the number of colours increased the Survey printed guides listing the colours under the title: Explanations and memoranda relating to standard colours used on the maps of the Geological Survey of Great Britain. They can be viewed on the BGS Publication viewer.
View the Index to colours on the Maps Portal
Explanations and memoranda relating to standard colours used on the maps of the Geological Survey of Great Britain. Addendum. [Typescript manuscript]. 1960: Standard colours for hand-colouring of 1:10 000 Standards and 1:50 000 mock-ups. 1991
A brief article about the colours and charts is available:
McIntosh, Bob and MacTaggart, Fergus Standard colours used on the maps of the Geological Survey of Great Britain. Edinburgh Geologist No. 61. Spring 2017
1:25 000 series - Classical areas of British geology
A series of maps at the detailed scale of 1:25,000 have been produced for areas of outstanding geological interest in the Great Britain. Some maps are accompanied by explanatory booklets. The maps have been published between 1954 and 2007. About 60 maps have been published, some showing solid geology, some drift geology and some combined solid and drift. The series was not numbered, however, for convenience, the numbers indicated refer to the number listed in the BGS Online shop.
1 Sheet SO 49 Church Stretton. Solid and Drift 1970
1 Sheet SO 49 Church Stretton. Solid and Drift 1968
2 Sheet ST 47 Clevedon - Portishead. Solid and Drift 1968
3 Sheet NY 57 Bewcastle. Solid and Drift 1969
3 Sheet NY 57 Bewcastle. Solid with Drift 1969
3 Sheet NY 57 Bewcastle. Drift 1954
3 Sheet NY 57 Bewcastle. Solid 1954
3 Sheet NY 57 Bewcastle. Drift 1959
4 Sheet SO 48 Craven Arms. Solid and Drift 1969
5 Sheet SO 59 Wenlock Edge. Solid and Drift 1969
6 Sheet SD 74 & part of SD 84 Clitheroe and Gisburn. Solid and Drift 1970
7 Sheet NT 16, 17, 26, 27, 36 and 37 (Parts of sheets) Edinburgh District. Solid and Drift 1971
8 Sheet SK25, SK26, SK35, SK36 Matlock. 1971
8 Sheet SK25, SK26, SK35, SK36 Matlock. Solid and Drift 1985
9 Sheet SO20, SO30, ST29, ST39 Usk-Cwmbran. Solid and Drift 1981
10 Sheet SP 83 & parts of SP 73, 74, 84, 93 & 94 Milton Keynes. Solid and Drift 1971
11 Sheet TL 81 Witham. Solid and Drift 1972
12 Sheet NY 53, 62, 63, 64, 71, 72 & 73 (Parts of sheets) The Cross Fell Inlier. Solid and Drift 1972
13 Sheet SH 53, 54, 55, 63, 63, 65, 66, 74, 75 & 76 (Parts of Sheets) Central Snowdonia. Solid 1972
14 Sheet TF 00, 10, 20 & TL 09, 19, 29 (Parts of Sheets) Peterborough. 1972
14 Sheet SM72 St David's. Solid 1973
16 Sheet SO47, SO57 Leintwardine Ludlow. Solid 1973
17 Sheet NY 82 & part of NY 92 Middleton-in-Teesdale. Solid and Drift 1974
18 Sheet SK 06 The Roaches & Upper Dove Valley. Solid and Drift 1975
19 Sheet SK 07 Buxton. Solid and Drift 1975
20 Sheet SK 18 Castleton. Solid and Drift 1975
21 Sheet TQ 22, 23, 32 & 33 (Parts of sheets) Cuckfield - West Hoathly. Solid and Drift 1975
22 Sheet SH 75 Capel Curig and Betws-y-Coed. Solid and Drift 1976
23 Sheet SK 17 Miller's Dale. Solid and Drift 1976
24 Sheet SK 16 Monyash. Solid and Drift 1977
25 Sheet SD 27 (with parts of SD 17 and SD 37) Dalton in Furness. Solid and Drift 1977
26 Llandrindod Wells Ordovician Inlier. Solid 1977
27 Sheet TQ 81 and parts of TQ 70, 71, 72, 80, 82, 91 & 92 Hastings - Rye. Solid and Drift 1977
28 Sheet SJ 60 Telford and parts of SJ 61, 70 & 71. Solid and Drift 1978
29 Sheet SH 76 Dolgarrog. Solid and Drift 1981
30 Sheet SK 26 Bakewell. Solid and Drift 1982
31 Jersey (Channel Islands Sheet 2). Solid and Drift 1982
32 Sheet ST 45 Cheddar. Solid and Drift 1969
32 Sheet ST 45 Cheddar. Solid and Drift 1983
33 St Kilda 1:25 000 Special sheet. Solid 1984
34 Sheet SH 65 and SH 66 (Parts of sheets) Passes of Nant Ffrancon and Llanberis. Solid and Drift 1985
35 Sheet SH 66 and SH 67 (Parts of sheets) Bethesda and Foel-Fras. 1986
36 Guernsey (Channel Islands Sheet 1). Solid and Drift 1986
37 Sheet SE 30 Barnsley. Solid and Drift 1987
38 Sheet SH 55 and SH 56 (Parts of sheets) Llyn Padarn. Solid and Drift 1988
39 Sheet NX 08, 18 and 19 (in part) Ballantrae. Solid 1988
40 Sheet SH 64 and SH 65 (Parts of sheets) Snowdonia. Solid and Drift 1989
41 Sheet SH 77/78 Conwy. Solid and Drift 1989
42 Sheet NY 12 Lorton and Loweswater. Solid and Drift 1990
43 Sheet SD 19 Devoke Water and Ulpha. Solid and Drift 1991
44 Shelve Ordovician inlier and adjacent areas Part of sheets SO29, SO 39, SJ20 and SJ 30. Solid and Drift 1991 45 Sheet NT 10, 11, 20 and 21 (in part) Moffatdale. Solid 1991
46 Sheet SD 18 and part of SD 28 Black Combe. Solid and Drift 1998
48 Sheet NG 52 Skye Central Complex bedrock. 1999
47 Sheet SD 29 and parts of SD 39, NY 20 and NY 30 Coniston. Solid and Drift 2003
48 Sheet NG 52 Skye Central Complex bedrock. Bedrock 2005
49 Sheet NN 14, NN 15, NN 24, NN 25 Glen Coe. Bedrock 2005
50 Sheet NC 96, ND 06, ND 07 (in part) Dounreay. Bedrock 2005
50 Sheet NC 96, ND 06, ND 07 (in part) Dounreay. Solid 2005
51 Ardnamurchan Central Complex. Bedrock and Superficial 2009
Sheet TQ 68 and parts of TQ 57, 58, 59, 67 and 68. South west Essex - M25 corridor. Solid and Drift 2002