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1966 Map of Lo 7 Hill, 1970 Print
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1966 Map of Lo 7 Hill

USGS Topo · Published 1970

About this map

The Grand Hogback dominates this Rio Blanco County landscape, forming a dramatic spine that separates the western gulches from the eastern creek drainages. During this mid-1960s survey, the area was characterized by a sophisticated network of high-altitude irrigation, evidenced by the Highland Ditch and Miller Ditch that follow the contours of the land to manage water resources in the arid climate. The southeastern portion of the map transitions into the White River National Forest, where the terrain becomes increasingly complex around the East Fork Red Canyon. The presence of several named gulches, such as Segar Gl and Joe Bush Gl, alongside the prominent Lo 7 Hill, suggests a landscape shaped by both natural erosion and early ranching or prospecting activity. Remote Jeep Trails and a crossing Pipeline indicate the infrastructure of a working wilderness typical of the Colorado interior during this era.

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Map Details

Date Portrayed1966
Date Published1970
PublisherU.S. Geological Survey
Map TypeTopographic
Scale1:24,000
Physical Dimensions22.3 x 26.9 inches

Editions of this 1966 Lo 7 Hill Map

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Source Details

SourceU.S. Geological Survey
CopyrightPublic Domain