2024 Map of Opalene Gulch

About this map

The Snake River carves through this high-desert landscape on the border of Owyhee and Canyon counties, where it surrounds riverine landmarks like Fruit Island, Dilley Island, and Cottontail Island. These islands and the adjacent shoreline are protected as part of the Deer Flat National Wildlife Refuge, a vital habitat in an otherwise arid region. The terrain is defined by dramatic volcanic and erosional features, including the prominent heights of Liberty Butte and Elephant Butte, alongside the sweeping Shares Basin.