A curious map hangs in the second room of Heaven and Earth, the new Richard Long exhibit at the Tate Britain in London, which opened on June 3. From afar, the map of Dartmoor Forest in southwest England resembles strategic battle map, with four concentric circles drawn atop a specific area, perhaps suggesting a target. The map, however, exists as a simple record, a history, of a walk Richard Long took thirty-seven years ago. “A Walk of Four Hours and Four Circles, England, 1972,” the caption reads. Each of the circles on the map represents Long’s self-imposed paths for his walk and do not necessarily symbolize dominion.