We camped across the river from Pile Cops http://gabrielhemery.com/2011/08/23/piles-copse-extreme-oak-woodland/ and went to explore the Upper Erme stone row, circle cairn and pound after out last visit in May: https://mostlyoutdoorsone.wordpress.com/2014/05/17/up-the-river-erm-dartmoor-may-2014/
Stall Moor cairn circle – also known as the Dancers and Kiss in the Ring. and the impressive upper Erme long stone row
http://www.dartmoorwalks.org.uk/site/ermecircle.html
http://www.isleofalbion.co.uk/sites/133/kiss_in_the_ring.php