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2018 Map of Parker SW

Name: 2018 Topographic Map of Parker SW
Creator: U.S. Geological Survey
Published: 2018
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 2018

About this map

The Colorado River defines the landscape of this 2018 survey, carving a path through the desert borderlands between San Bernardino and Riverside counties in California and La Paz County in Arizona. This map captures the intricate irrigation infrastructure essential to the region, including the Main Canal and a complex network of laterals such as Lateral Nineteen R and Lateral Twenty-seven R that feed the agricultural plots of Parker Valley. The terrain transitions from the marshy lowlands of Lost Lake and Twelvemile Slough to the prominent rising slopes of the Riverside Mountains in the southwest.

Residential and transport patterns are evident along US Rte 95, which skirts the Vidal Valley and links scattered desert developments. Local history is etched into the landscape via named landmarks like Gravel Hill Bend and Deer Island. The map also details numerous local roads and trails with distinctive names such as Pah-Aska Trl and Citrus Ranch Rd, reflecting the intersection of desert recreation and rural land management.