2010 Map of Blackstone Reservoir

About this map

Blackstone Ranch serves as a primary human landmark in this section of Owyhee County, situated near the headwaters and drainages of Louse Creek. The landscape is defined by the management of water in an arid environment, anchored by Strickland Dam which impounds the local reservoir. This 2010 survey illustrates the isolation of the high desert, where topographic features like Big Holes and Juniper Draw provide the only breaks in the terrain. The primary transit artery is the Blackstone Grasmere Rd, which connects these remote outposts. Water courses such as Nil Creek and Sheep Creek etch narrow paths through the landscape, indicating the seasonal flow patterns critical to the ranching operations in this corner of Idaho.