2015 Map of Snake Lake

About this map

Surprise Valley defines the eastern transition of this high-altitude landscape, where the arid basin meets the steep drainages of the Modoc National Forest. This 2015 survey reveals a complex hydrological network essential for land management and ranching, including the ephemeral Lower Lake and the eponymous Snake Lake. The infrastructure of water collection is evident through features like the Sworinger Reservoir, Bare Cr Ditch, and Van Riper Spring, which tap into the snowmelt running through Snowslide Canyon and Waterbox Canyon. The map illustrates the intersection of Modoc and Lassen counties, showing how local routes like Surprise Valley Rd and Co Road 42A provide access to the remote creeks and canyons that feed the valley floor.