Ian, there is a book simply titled as DARTMOOR by Ian Robson with photographs by Lee Frost that would be worth a look at if James is interested (ISBN 1-84107-039-4). There are plenty of interesting land marks close to the road side such as the Merrivale stone-rows, Combestone Tor, Widecombe-in-the-moor, Buckland-in-the-moor and Burrator etc, which might be more convenient for cyclist. Some of the places in my B&W photos, were well off the road and not really ideal for cyclist to visit.
Originally Posted by Ian Grant
If I plan a visit there sometime in future, I will bear in mind meeting up with James.
There will be an exhibition of B&W prints at the Dartmoor visitor centre in the summer by Chris Chapman who was a friend of the late James Ravilious. I am not sure of the dates, but will let you know, as James might be interested in seeing those.