Thornhill 1991

Newton Quarry, Gatelawbridge, Thornhill, looking south, Thornhill Sandstone Formation (Permian), group, Edinburgh Geological Society excursion, Bill Baird in foreground, 4 May 1991 (photo Marian McMillan)

Crichope Linn, Thornhill, gorge cut in Thornhill Sandstone Formation (Permian), Edinburgh Geological Society excursion, 4 May 1991 (photo Marian McMillan)

Crichope Linn, Thornhill, Thornhill Sandstone Formation (Permian), Edinburgh Geological Society excursion, Andrew, David Gould, young Harper relation, 4 May 1991 (photo Marian McMillan)

Crichope Linn, Thornhill, Thornhill Sandstone Formation (Permian), Edinburgh Geological Society excursion, Heather Macaffe, Marjory Mackinnon, Richard Smith, 4 May 1991 (photo Marian McMillan)

Enterkin Glen, Thornhill, looking north, Edinburgh Geological Society excursion, 4 May 1991 (photo Marian McMillan)

Enterkin Glen, Thornhill, looking north, Edinburgh Geological Society excursion, 4 May 1991 (photo Marian McMillan)

Crichope Linn, Thornhill, Thornhill Sandstone Formation (Permian), Edinburgh Geological Society excursion, 4 May 1991

Crichope Linn, Thornhill, Thornhill Sandstone Formation (Permian), Edinburgh Geological Society excursion, 4 May 1991

Crichope Linn, Thornhill, Thornhill Sandstone Formation (Permian), close up of cross-bedded sets, Edinburgh Geological Society excursion, 4 May 1991

Enterkin Glen, Thornhill, looking north, Edinburgh Geological Society excursion, 4 May 1991