2020 Map of Poison Butte

About this map

Poison Butte stands as the primary landmark in this corner of Owyhee County, where the high desert landscape is punctuated by a series of essential water catchments. These features, including Post Office Reservoir and Flat Draw Reservoir, illustrate the critical importance of water management in this arid region of Idaho. The map reveals a land divided by township and range lines, showing how modern ranching or land management utilizes small drainages like Poison Cr Reservoir and Lake Pit Reservoir to sustain operations far from the state's major river systems. On the eastern edge, Mid Butte provides a secondary point of orientation for those navigating the high plateaus and creek beds. Seasonal watercourses such as Jacks Creek and Dorsey Cr carve subtle variations into the topography, marking the natural drainage patterns that define this remote high-country environment.