1972 Map of Mosby Butte

About this map

Great Rift volcanic activity dominates this high desert landscape along the border of Blaine and Power counties. Mapped in the early 1970s, the terrain is characterized by geological instability and subterranean features, including the Bear Trap Lava Tube and Sullivans Cave. The area is largely defined by its volcanic heritage, with prominent landmarks such as Mosby Butte and Horse Butte rising above the surrounding lava fields and sagebrush. Settlement is nonexistent in this part of the Snake River Plain, with human presence marked only by a network of a Jeep Trail routes that navigate around hazardous fissures and Cracks. This survey offers a precise record of the unique volcanic topography before modern recreational use increased, highlighting the isolation and stark geological formations of the Idaho desert.