Llantwit Major: Col-huw beach, Glamorgan: Lias ammonites

Where: UK & Ireland · Europe · approx. 51.39, -3.51 (vicinity only)

Why this spot: Rockhounding locality: banded blue Lias cliffs of the Glamorgan Heritage Coast, ammonites weathering out of fallen limestone blocks

What turns up: ammonites, gryphaea, other bivalves, echinoid fragments, calcite-lined nodules

Access: Open / legal.

Heritage Coast and SSSI cliffs: work fallen blocks and loose scree on the beach only, no hammering the cliff face

Satellite view, historic-map overlays, tide/flow context and field notes are in the app. Exact research detail is part of Pro.