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Dayhouse Quarry, Lower Dolomite Beds

Tidenham rail tunnel entrance, disused. Built for Wye Valley Railway

Dayhouse Quarry, Lower Dolomite Beds

Fissure in dolomite filled with debris derived from Triassic formations

Dayhouse Quarry, Lower Dolomite Beds, dipping at 70 deg

Dayhouse Quarry, now used as a diving centre

Severn shoreline; Mercia Mudstones

Blue Anchor Formation (Tea Green Marls) contain calcite rich patches of infill, possibly algal mats.

Close up of possible algal mat

Close up of possible algal mat