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2011 Map of Imperial Reservoir

Name: 2011 Topographic Map of Imperial Reservoir
Creator: U.S. Geological Survey
Published: 2011
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 2011

About this map

The Colorado River defines the landscape of this 2011 survey, meandering through a complex network of wetlands and backwaters that include Martinez Lake and the Imperial Reservoir. This region is a critical intersection of water management and recreation, evidenced by the clustered settlements at Fishers Landing and Castle Dome Landing along the riverbanks. The map illustrates how human infrastructure has adapted to the desert environment, with the Imperial Dam Rd and Senator Wash Reservoir providing essential water control near the southern reach of the sheet.

To the east, the terrain transitions into the arid expanse drained by the Los Angeles Wash, where military operations at Laguna Army Airfield contrast with the seasonal nature of the Boy Scout Camp. Landmarks like Explorers Pass and the small settlement of Harwood offer points of reference for those studying the modern character of this Arizona-California borderland, where riparian corridors meet the high desert.