Editing Long excursion, Llangollen District, August 16th–23rd, 1919 - Geologists' Association excursion

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== Long excursion, Llangollen District, August 16th–23rd, 1919 (Transcription from: GA Circular 219. Session 1919–1920. p. 4–6) ==
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'''Director''', L. J. WILLS, MA., F.G.S.
 
'''Director''', L. J. WILLS, MA., F.G.S.
  
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== Monday, August 18th. ==
 
== Monday, August 18th. ==
  
Breakfast 8.0. Take 9.55 train to Berwyn, arriving 10.1. Post-Glacial diversion of the Dee at Llantisilio and the Berwyn Gorge. 3½ miles walk from the station, at first along the side of the pre-Glacial valley, to Cloggau Slab Quarry, O.D. 1500. Intense folding of Lower Ludlow Beds ''(H. nilssoni ''zone); ½-mile to Oernant Slate Quarry, O.D. 1300, Pentre Dwfr slates. Lunch. 1½ miles to Moel-y-Faen. Quarries, O.D. 1300, Pen-y-glog Slates and extensive quarries, illustrating the type of folding.
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Breakfast 8.0. Take 9.55 train to Berwyn, arriving 10.1. Post-Glacial diversion of the Dee at Llantisilio and the Berwyn Gorge. 3½ miles walk from the station, at first along the side of the pre-Glacial valley, to Cloggau Slab Quarry, O.D. 1500. Intense folding of Lower Ludlow Beds ''(H. nilssoni ''zone) ; ½-mile to Oernant Slate Quarry, O.D. 1300, Pentre Dwfr slates. Lunch. 1½ miles to Moel-y-Faen. Quarries, O.D. 1300, Pen-y-glog Slates and extensive quarries, illustrating the type of folding.
  
 
Return 4¾ miles down hill to Llangollen by old Ruthin road. ''Cyrtograptus murchisoni ''Beds (fossils) and topmost Tarannon Slates. The route leads past Valle Crucis Abbey. Should any member not desire to complete the round, they can return from any point after Oernant. There will be no opportunity for tea, but possibly carriages may be arranged for to bring back some of the party the last 3½ miles from Pentre-Dwfr. Dinner 7.30.
 
Return 4¾ miles down hill to Llangollen by old Ruthin road. ''Cyrtograptus murchisoni ''Beds (fossils) and topmost Tarannon Slates. The route leads past Valle Crucis Abbey. Should any member not desire to complete the round, they can return from any point after Oernant. There will be no opportunity for tea, but possibly carriages may be arranged for to bring back some of the party the last 3½ miles from Pentre-Dwfr. Dinner 7.30.
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== Tuesday, August 19th. ==
 
== Tuesday, August 19th. ==
  
Breakfast 8.0. Leave headquarters 9.0 on foot for Cyrn-y-brain, 1½ miles, the Aqueduct fault is crossed and Red Basement Carboniferous Beds will be examined O.D. 900; 1½ miles to Ty-Canol; 1 mile to Plas-uchaf, O.D. 900, Tarannon-Llandovery succession. Lunch at Plas-uchaf, which is a historic old house. Examine the Plas-uchaf Grit and Cyrn-y-brain Beds (Ashgillian) near here; 1½ miles to point, O.D. 1511, Llandovery and Tarannon Beds with fossils; ½ mile to Pentre-uchaf, crossing faulted Tarannon Slate country. Thence 4 miles along road as on Monday. It may be possible to arrange for some members to drive home from Pentre-Dwfr as on Monday. Dinner 7.30.
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'''Breakfast '''8.0. Leave headquarters 9.0 on foot for Cyrn-y-brain, 1½ miles, the Aqueduct fault is crossed and Red Basement Carboniferous Beds will be examined O.D. 900 ; 1½ miles to .Ty-Canol ; 1 mile to Plas-uchaf, O.D. 900, Tarannon-Llandovery succession. Lunch at Plas-uchaf, which is a historic old house. Examine the Plas-uchaf Grit and Cyrn-y-brain Beds (Ashgillian) near here ; 1½ miles to point, O.D. 1511, Llandovery and Tarannon Beds with fossils ; ½ mile to Pentre-uchaf, crossing faulted Tarannon Slate country. Thence 4 miles along road as on Monday. It may be possible to arrange for some members to drive home from Pentre-Dwfr as on Monday. Dinner 7.30.
  
 
== Wednesday, August 20th. ==
 
== Wednesday, August 20th. ==
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== Thursday, August 21 st. ==
 
== Thursday, August 21 st. ==
  
Breakfast 8.0. 9.25 train to Trevor, 9.36; ''or, ''if it can be arranged, 9.15 boat on canal to Trevor. Base of the Coal Measures and topmost grit near Trevor. One mile to Garth O.D. 900, cherts and grits of the Millstone Grit; 1 mile to Trevor Rocks, Sandy Limestone Series and Carboniferous Limestone, D. 2; 1 mile to Eglwyseg Rocks, Carboniferous Limestone with fossils and a conglomerate; 1 mile to Castel Dinas-Bran O.D. 1023. Refreshments. Highest Ludlow, Beds with ''.Dayia navicula, ''1 mile to Llangollen. Dinner 7.30.
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Breakfast 8.0. 9.25 train to Trevor, 9.36 ; ''or, ''if it can be arranged, 9.15 boat on canal to Trevor. Base of the Coal Measures and topmost grit near Trevor. One mile to Garth O.D. 900, cherts and grits of the Millstone Grit; 1 mile to Trevor Rocks, Sandy Limestone Series and Carboniferous Limestone, D. 2 ; 1 mile to Eglwyseg Rocks, Carboniferous Limestone with fossils and a conglomerate ; 1 mile to Castel Dinas-Bran O.D. 1023. Refreshments. Highest Ludlow, Beds with ''.Dayia navicula, ''1 mile to Llangollen. Dinner 7.30.
  
 
== Friday, August 22nd. ==
 
== Friday, August 22nd. ==
  
Breakfast 8.0. Leave headquarters at 9 a.m. on foot; 2¼ miles to Bryn-y-groes O.D 1276, good view of the deserted pre-Glacial Dee valley near Pengwern; 1½ miles to Cambrian Slate Quarries. Pen-y-glog slates with fossils, Tarannon slates. Lunch. 1½ miles to Pandy, crossing Glyn Grit and Dolhir Beds (Ashgillian), Bryn Beds (Caradocian), with intrusion of Keratophyre and Pandy Ash. The Dolhir and Bryn Beds are fossiliferous. If time permits 1¼ miles to Glyn-Ceiriog via Mynydd Fron-frys, Dolhir and Glyn Limestones, Llandovery and Tarannon Slates. If it does not, return by road 1 mile to Glyn Ceiriog. Tea at Glyn Valley Hotel at 4,30. Return 3 miles over the hill, O.D. 1276, to Llangollen. Dinner 7.30.
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Breakfast 8.0. Leave headquarters at 9 a.m. on foot ; 2¼ miles to Bryn-y-groes O.D 1276, good view of the deserted pre-Glacial Dee valley near Pengwern ; 1½ miles to Cambrian Slate Quarries. Pen-y-glog slates with fossils, Tarannon slates. Lunch. 1½ miles to Pandy, crossing Glyn Grit and Dolhir Beds (Ashgillian), Bryn Beds (Caradocian), with intrusion of Keratophyre and Pandy Ash. The Dolhir and Bryn Beds are fossiliferous. If time permits 1¼ miles to Glyn-Ceiriog via Mynydd Fron-frys, Dolhir and Glyn Limestones, Llandovery and Tarannon Slates. If it does not, return by road 1 mile to Glyn Ceiriog. Tea at Glyn Valley Hotel at 4,30. Return 3 miles over the hill, O.D. 1276, to Llangollen. Dinner 7.30.
  
 
== Saturday, August 23rd. ==
 
== Saturday, August 23rd. ==
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J. LOMAS.—"Geology of Berwyn Hills." 1908. Price 6d.
 
J. LOMAS.—"Geology of Berwyn Hills." 1908. Price 6d.
  
L. J. WILLS.—"Late Glacial and post-Glacial changes in the Lower Dee Valley." ''Quart. Journal Geol. Soc., ''1912, pp. 180–198.
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L. J. WILLS.—"Late Glacial and post-Glacial changes in the Lower Dee Valley." ''Quart. Journal Geol. Soc., ''1912, pp. 180{{anchor|DdeLink1334593505780}} –198.
  
 
The times of trains stated are taken from the June time=tables. Members should consult the new July timetables.
 
The times of trains stated are taken from the June time=tables. Members should consult the new July timetables.
  
 
[[Category:Geologists' Association excursions]]
 
[[Category:Geologists' Association excursions]]

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