2011 Map of Whitehorse Butte

About this map

Arritola Ranch sits at a nexus of ranching roads in this high-desert landscape of Malheur County, where water management is the primary driver of human activity. This 2011 survey reveals an intricate network of man-made water catchments, including Subsoiler Reservoir, Jaca Reservoir, and Slipper Reservoir, all designed to sustain livestock across the arid flats. The terrain is marked by significant topographical shifts, moving from the heights of Horse Ridge and Whitehorse Butte down into the depths of Indian Canyon and the Rim Basin. The drainage system is defined by seasonal waterways like Mud Flat Creek and Flat Creek, while the Owyhee River cuts through the southwestern corner near Deary Pasture. Notable landmarks such as Groundhog Falls provide distinctive navigational points within this vast rangeland.