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Allotment Dig  Kiddies' Cave  Guano Rift  Tar Stalactite Cave  Flagpole Rift  Skittle Alley Rift  Lookout Rift   Grove Cliff Fissure  Rumble Chasm  Rail Rift  Durdle Rift 

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Coffin Hole

The Grove, Portland.

NGR:SY 70353 72323
WGS84:50.54991, -2.41982
Length:21 m
Depth:0 m
Altitude:Not recorded
Tags:Cave
Registry:mcr-d

Relict stream passage 8 m long which ends shattered and choked by cliff retreat below Allotment Dig (q.v.).

Breaks into a short section of loose mass movement rift with no obvious way ahead.

Alternative Names: None recorded.

Notes: Karst / mass movement hybrid

Hydrographic Feeds: Long-lost to erosion of catchment. Some evidence of river valleys to E & W of Portland.

Hydrographic Resurgences: Unknown.

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This entry was last updated: 2020-05-02 21:28:38

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