2017 Map of Mann Lake

About this map

Mann Lake dominates the central basin of this high-desert landscape in Harney County, lying at the eastern foot of the massive Steens Mtn escarpment. The drainage pattern here is defined by seasonal creeks and springs that descend from the higher elevations, including Deep Cr and Sullivan Cr, which cross over Sullivan Meadows before reaching the valley floor. The map records a series of vital water sources in this arid environment, such as Barrel Springs and Big Springs, which have long supported the region's livestock and wildlife.