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1963 Map of Big Rock Hill, 1979 Print
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1963 Map of Big Rock Hill

USGS Topo · Published 1979

About this map

Tohatchi Flats and the western edge of the Navajo Indian Reservation dominate this landscape, where high-altitude ridges meet broad washes in McKinley County. The map details a period of resource exploration and pastoral ranching, evidenced by the Woolly Tommy Mine and the Jack Johnson Mine tucked into the rising slopes. Water is the primary driver of development here, with Sheep Spring, Coal Mine Spring, and Bass Lake providing essential hubs in an otherwise arid environment. Along the southern edge, the Bethlehem Ch stands near the intersection of the Dye Brush Wash, while further east, the presence of Tom Ranch suggests the continued importance of livestock operations. The terrain is defined by dramatic elevation changes at Big Rock Hill and Coal Mine Hill, which are carved by a complex network of drainage systems including Figueredo Wash and Mexican Cook Canyon.

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Map Details

Date Portrayed1963
Date Published1979
PublisherU.S. Geological Survey
Map TypeTopographic
Scale1:24,000
Physical Dimensions22.1 x 26.9 inches

Editions of this 1963 Big Rock Hill Map

Historical Maps of Fort Defiance Agency Through Time

446 maps found

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Source Details

SourceU.S. Geological Survey
CopyrightPublic Domain