Differentiates between public and private land, and also among the various agencies who manage the public lands. Near Organ Pipe Cactus National Monument and the Cabeza Prieta Wildlife Refuge. AZ Hunting Units 46A and 46B and portions of Unit 40B. Most of the map covers the wildlife refuge. Hiking, backpacking, hunting, and wildlife viewing. Scale 1:100,000 (roughly 3/4 inch = 1 mile). 2001