2014 Map of May Lake

About this map

Warner Valley dominates this high-desert landscape in Lake County, bordered by the steep ascent of the S Warner Rim. The topography is defined by a sophisticated network of water management features essential for ranching and land use in this arid region. Numerous numbered catchments, such as Cork Reservoir Number Seven, Hahilly Reservoir Number Four, and Six Pack Reservoir Number Four, indicate a highly managed water system designed to capture runoff from the rim. Near the southern edge, the elevation climbs towards Mosquito Mountain. This 2014 survey documents the persistence of remote rangeland infrastructure, with isolated water sources like Cattle Guard Spring and Spearpoint Spring serving as vital landmarks along primitive routes such as Twenty Mile Rd and Cahill Ln.