"Drawn at unconformable upward change from yellow and red sandstone of the Balnagown Group to probable Jurassic Strata."@en . "Yellow and red, medium-grained, cross bedded sandstone of fluvial origin with scattered pebbles."@en . . . "359.3"^^ . "stable"@en . . . "Balnagown Group"@en . "BAGR"@en . "Sandstone. Stratified bedrock. Occurs onshore. Deposited during the Frasnian Age - to - Famennian Age (Devonian Period) (378.9-359.3 Ma BP)."@en . "Drawn at base of yellow and red sandstones of the Balnagown Group where it rests unconformably on sandstone of the Strath Rory Group."@en . "Not known."@en . "378.9"^^ . "Balnagown Group"@en . .