Fernacre carries a pivotal location between Rough Tor located due north and Brown Willy located due east. Garrow Tor also lies to the east and Louden Hill to the west-southwest. It is only 100 ft from being in a direct line in an easterly direction between Stannon and Brown Willy Cairns, another small erect stone stands in this line eastwards on the way to Brown Willy which has been suggested to mark the equinox sunrise. William Page note that when viewed from the centre of Fernacre circle the sunset on 1 May would align approximately with Louden Hill.