Hi Roy,

This is the route I meant here:

http://www.themodernantiquaria[...]m/?thread=66344&message=840025

The Eagle's Nest is a house by the road - I think it's where the label "Higher Tregerthen" appears on the OS 1/25000. The driveway to The Carne is on the opposite side of the road, you can see it as a double pecked line on the map (not shown as a footpath, but the whole area is access land so you can wander).

As the driveway heads south from the road, it forks. The right fork (the driveway) continues to The Carne, the left fork (a track) goes to Sperris. You can take either, Sperris Quoit can be reached via the left fork, near some ruined mine buildings. If you go to The Carne (which is derelict, or was when I last went), turn left (south-east). The Quoit is on the right of the path heading this way.