1963 Map of Grand Gulch

Remote outposts such as Red House and Collins Spring provide small terrestrial anchors in a region otherwise dominated by complex terrain features like Hardscrabble and the Clay Hills. This edition, published in cooperation with the Atomic Energy Commission, also records several prospecting drill holes and a network of jeep trails threading between Pollys Pasture and Slickhorn Pasture, reflecting the era's mid-century interest in uranium and resource exploration on the Navajo Indian Reservation.