2020 Map of Three Forks

About this map

The convergence of the North Fork Owyhee River, Middle Fork Owyhee River, and the main stem of the Owyhee River creates a complex hydrologic junction at Three Forks. This remote corner of Malheur County is defined by steep drainage systems such as Porcupine Canyon, Warm Springs Canyon, and Loveland Canyon that cut deep into the high desert plateau. A network of livestock and ranching infrastructure is evident through numerous upland catchments like Three Forks Rim Reservoir and Lone Tree Reservoir. Of particular interest to local historians is the Military Grade, a named road segment descending toward the river forks, and the Tudor Warm Springs located along the river bank. The map also records the presence of the Three Forks Dome and various rangeland features such as Tuu-Tiipi Flat and Brown Ridge.