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1971 Map of Grommet

Name: 1971 Topographic Map of Grommet
Creator: U.S. Geological Survey
Published: 1973
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1973

About this map

The Atchison Topeka and Santa Fe railroad corridor anchors the small settlement of Grommet in this high-desert landscape from 1971. The map illustrates the vital infrastructure required to move water across the arid basins of Rice Valley and Vidal Valley, most notably the massive Colorado River Aqueduct and its associated Siphon and Substation. This industrial desert lifeline contrasts with the surrounding natural terrain, dominated by the West Riverside Mountains and shifting Sand Dunes near the southern boundary.

Evidence of desert exploration and minor industry appears in the network of Jeep Trails and scattered Prospect markings. The map also delineates the jurisdictional boundary where San Bernardino Co meets Riverside Co, providing a detailed look at the land use and topographic character of the region before more modern developments. Notable landmarks such as a Radio Tower and the drainage of Vidal Wash further define the local geography.