2020 Map of Castle Butte

About this map

Snake River curves through the northern reach of this high desert landscape, marking the historical boundaries between Ada, Owyhee, and Elmore counties. The terrain is defined by dramatic geographic benches and alluvial features like Henderson Flats and Big Foot Bar, while the prominent Castle Butte stands as a landmark above the river valley. Traces of early western transit remain visible through the Emigrant Trl, which skirts the northern bluffs near Fossil Cr. To the south, the map details a network of drainage systems and intermittent washes including Catherine Cr, Cloudburst Gulch, and Garbutt Wash. The rural road network, featuring Murphy Grandview Rd and Castle Creek Rd, illustrates the modern access routes through this historically significant corridor of the Snake River Plain.