Peden's Cave is located near the top of a much eroded red sandstone cliff, the cave floor being around 10 feet above the River Lugar on the south-western side of this water course, just off the old road that ran from Stair past Auchinbay Farm and over the old Slatehole Ford, later replaced by the now ruined Slatehole Bridge and its associated lodge, running into the Auchinleck Estate.