2021 Map of Pinnacle Lake

About this map

Clear Lake National Wildlife Refuge and the Modoc National Forest converge in this high-desert basin of northeastern California. This survey illustrates a landscape where seasonal water and managed land dominate, centered on the expansive Clear Lake Reservoir. Drainage is defined by the intermittent flows of Mowitz Creek, which winds southward toward Pinnacle Lake. The terrain is marked by distinct volcanic and shoreline features, such as the Bump Heads and a unique formation known as The U. Other vital water sources for local wildlife and livestock appear as small catchments and springs, including Barry Tank, Red Lake, and the specifically named Negro Bend Spring. The grid of the Public Land Survey System provides the primary structural framework across this largely uninhabited territory.