Loading map...

1968 Map of Calderwood Reservoir

Name: 1968 Topographic Map of Calderwood Reservoir
Creator: U.S. Geological Survey
Published: 1980
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1980

About this map

The Warner Valley high desert of Lake County is defined here by its complex water systems and dramatic elevation changes. Water management is central to the landscape, with the sprawling Greaser Reservoir and its spillway dominating the central basin. Further north, the expansive Warner Lakes network includes Crump Lake and Pelican Lake, while Calderwood Reservoir sits significantly higher to the northeast along Fish Creek.

Cultural and historical markers provide a human layer to this arid terrain, notably a recorded Petroglyph located east of the reservoir near the base of the rising plateau. Settlement is sparse, represented by the small community of Soda Lake at the southern edge. The map also traces the winding course of Deep Creek and the Twentymile Slough, which feed into the valley's sinks and flats, such as the Alkali Flat near Fisher Lake.