2023 Map of Boundary Ridge

About this map

Boundary Ridge defines the high-altitude topography of this tri-state corner, where the borders of Idaho, Wyoming, and Utah converge. The landscape is marked by a complex system of drainage and storage, including Poison Cr Reservoir and various seasonal flows like Sweetwater Creek and Pegram Creek. Settlement is sparse, represented by Taylor and localized ranching infrastructure accessible via Humburg Ranch Rd. The terrain is deeply incised by family-named canyons and draws, such as Christy Canyon, Red Rock Canyon, and Snow Hollow. This 2023 survey illustrates a high-desert environment where water management and cattle-grazing routes dictated the local nomenclature, from Windmill Draw to the winding Dry Hollow Rd.