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1990 Map of Ambrose

Name: 1990 Topographic Map of Ambrose
Creator: U.S. Geological Survey
Published: 1990
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1990

About this map

Modoc National Forest encompasses much of this high-elevation landscape in northeastern California, where cattle ranching and water management define the land use. The topography is shaped by prominent rises like Rail Mountain and the descent into Blacks Canyon to the south. Water is the central story of this quadrangle, represented by a network of seasonal catchments and improvements such as Williams Reservoir, Duncan Reservoir, and several stock tanks including Six-Shooter Stock Tank.

The small settlement of Ambrose sits in the southwestern corner, linked to the wider region by a lonely road network and a major Transmission Line. This 1990 provisional edition, based on earlier photography and field checks, captures the area's essential character as a managed wilderness, where features like Bucher Swamp and Widow Valley remain relatively untouched, serving as vital resources for both wildlife and local industry.