"Death, Daring and Disaster" by Charles R 'Butch' Farabee Jr. A history of Search and Rescue in the National Parks.

Great reading, covers the years 1870 to 2004. Many stories I had never heard of, like the guy who parachuted to the top of Devils Tower (865') in 1941! He had no clue on how to get down but had 1000' of rope bundled in the plane. The pilot circled around and dropped the rope package which bounced and fell off the tower, landing on a ledge below. Officials considered using a blimp to get him down! They had to go up and rescue his ass.