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1992 Map of Blackrock

Name: 1992 Topographic Map of Blackrock
Creator: U.S. Geological Survey
Published: 1994
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1994

About this map

Lava flows and water engineering dominate this Owens Valley landscape, where the Los Angeles Aqueduct and numerous canals like the Aberdeen Ditch cut through the arid terrain. The map captures a complex network of resource management, including the Black Rock Fish Hatchery and several drainage projects such as the Blackrock Drain and Bypass Ditch.

Settlement is sparse, marked by established locations like Taboose Ranch and Eightmile Ranch, while industrial history is represented by an Old Railroad Grade and mining activity at the Black Jack Mine and Squaw Mine. The eastern edge rises into the Inyo National Forest at Crystal Ridge, providing a sharp contrast to the marshy lowlands of Goose Lake and Tulare Swamp that lie along the river's path.