2017 Map of Triangle Flat

About this map

Triangle and the expansive basin of Triangle Flat define this high-desert ranching landscape in Owyhee County. The area’s water management is evident through a series of namesake water sources such as Florence Spring, Chimney Spring, and Hardiman Spring, which feed into various drainages like Josephine Cr and Rock Cr. The map reveals a remote pastoral infrastructure, anchored by the Josephine Ranch Airport in the south and the small settlement at Triangle. High ground is marked by Rose Ridge and the contours overlooking Long Valley. Significant ranching roads, including Flint Rd and Triangle Rd, provide the primary connections across this terrain. Small-scale water storage projects like Spencer Reservoir and Twin Valley Reservoir underscore the critical importance of water rights and irrigation in this corner of Idaho.