2023 Map of Arco Hills

About this map

The Lost River Range and the Challis National Forest dominate this high-desert landscape in Butte County, Idaho. This modern topographic survey highlights a series of deep, family-named drainages including Jack Wright Canyon, Braithwaite Canyon, and Sutton Canyon, which cut through the uplifted Arco Hills. The drainage patterns here reveal a reliance on scarce water sources in a dry environment, marked by the presence of King Spring, Walker Spring, and the Combe Reservoir. Connectivity across this rugged terrain is limited to primitive routes such as Arco Pass Rd and Pass Rd, while the eastern edge of the quadrangle descends toward the expanse of Deadman Flat.