Cambridge Underground 1985 p 15

Grange Rigg / P5 - A Minor Extension

by Julian Griffiths

A couple of trips were spent digging / banging the choke into which the P5 stream sinks at the end of Grange Rigg. It didn't take long to uncover 80' of passage ending in a most unpromising sump at the same level as the Grange Rigg sump. The passage leads towards the latter.

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