2023 Map of Bear Trap Cave

About this map

Craters Of The Moon National Preserve encompasses much of this high-altitude landscape, where the geological history of the Snake River Plain is strikingly visible. The terrain is dominated by the sprawling Wapi Flow, a massive basaltic field that stretches across the southern half of the sheet. Notable volcanic landmarks include the Bear Trap Lava Tube and the distinctive Split Butte to the west. Human activity in this remote region is limited to infrastructure like the Minidoka To Arco Rd and the Bear Trap Airport, reflecting the sparse utility of this volcanic desert. Small-scale water management is evident at Lulu Reservoir, likely serving the needs of local ranching or resource management in an otherwise arid environment.