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1990 Map of Alsup Mountain

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

USGS Topo · Published 1990

About this map

Malheur National Forest spans the heart of this landscape, where the South Fork John Day River carves through the high country of eastern Oregon. The 1990 survey documents a transition in land use, marking several former homestead and activity hubs as archaeological or historical locations, including the Carey Ranch (Site) and Brown Ranch (Site). These sites, along with the Buttes Ranch (Site) and Hunter Cabin (Site), offer specific points of interest for genealogists and local historians tracing the ranching families that once operated in these uplands.

Water management is central to the terrain, evidenced by features like Rickman Reservoir and Crystal Reservoir, which supported livestock across the high flats. The map follows the boundary between Grant and Harney counties, crossing prominent heights such as Donivan Mountain and Alsup Mountain. From the meadows of Sunflower Flat to the secluded Sawtooth Meadows, the sheet provides a detailed view of the springs and creek systems that defined life in this high-desert forest environment.