You are here: Home>Search Search Currently displaying: 2 results You've searched for: Collection: "Alison Armstrong Archive" xPlace: "Helwith Bridge" x Search term Filter by Collection Alison Armstrong Archive (2) Filter by Subject Landscape (2) Filter by Place Helwith Bridge (2) Filter by Format Photograph (2) Sort by: RelevanceTitleOldestNewest Geology - Dry Rigg Quarry - unconformity i AAA/004/002/010 AA4_1_10 Geology: Dry Rigg Quarry, Helwith Bridge, unconformity between Horton Formation silurian siltstone and Kilnsey Formation carboniferous limestone above. Geology - Dry Rigg Quarry - unconformity ii AAA/004/002/011 AA4_1_11 Geology: Dry Rigg Quarry, Helwith Bridge, unconformity between Horton Formation silurian siltstone and Kilnsey Formation carboniferous limestone above.