2024 Map of May Lake

About this map

Warner Valley and the prominent South Warner Rim anchor this high-desert landscape in southeastern Oregon, where water management is the primary signature of land use. A series of numbered water catchments, including Cork Reservoir Number Seven, Hahilly Reservoir Number Four, and Six Pack Reservoir Number Four, reveal the critical role of irrigation and livestock watering in this arid Lake County environment. These artificial features supplement natural water sources like May Lake and the drainage of Twentymile Creek. The terrain rises sharply toward Mosquito Mountain in the south, while several named springs, such as Surveyor Spring and Spearpoint Spring, indicate localized water access points essential for the region's ranching operations. The infrastructure of cattle guards and roads like Cahill Ln and Valley Rd suggests a landscape dedicated to rangeland management and remote transit.