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1973 Map of Slack Mountain

Name: 1973 Topographic Map of Slack Mountain
Creator: U.S. Geological Survey
Published: 1977
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1977

About this map

Slack Mountain anchors this high-desert Owyhee County landscape, where deep drainages like Cow Valley Canyon and Jackass Creek have carved a complex network of rimrock and plateaus. In the early 1970s, this area was defined by its vast grazing potential and water management, evidenced by numerous named reservoirs such as Nickel Res and Antelope Res. Large flat-topped mesas known as tables, including Avery Table, Boni Table, and Grass Table, dominate the topography, providing distinct landmarks for navigation.

A network of springs, such as Bat Spring, Cougar Spring, and Frying Pan Spring, provided critical water sources across the arid terrain. The map's detailed documentation of Anne Valley Creek and Sunshine Valley Creek reveals the natural drainage patterns that sustain this remote environment. For researchers, the presence of various family-named features and remote Jeep Trails provides a clear view of the land's utility and the ranching infrastructure established by the mid-20th century.