
T A Ranch serves as a central landmark in this high-plains landscape of Johnson County, where the terrain is defined by a complex network of draws and ridges. Irrigation and water management are critical to the region's agricultural life, evidenced by a series of significant waterworks such as the Fort Collins Canal, the Watkins Ditch, and the Twenty and One Half Ditch. These man-made features weave between natural drainage systems like N Fork Crazy Woman Cr and Billy Cr, feeding numerous private impoundments including the Kingsbury Todd Number 1 Reservoir and Gerkin Reservoir. The elevation rises toward the T A Hills and the Kingsbury Ridge to the north, while the Tisdale Divide marks a prominent local summit. This 2021 survey illustrates a modern ranching economy still heavily dependent on historical water rights and the seasonal flow of draws like East Four Draw and Coyote Draw.
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This is the sole edition of this map. No revisions or reprints were ever made.
1900 · Fort McKinney
USGS Topo · 1:125,000
1903 · Fort McKinney
USGS Topo · 1:125,000
1955 · Sheridan
USGS Topo · 1:250,000
1958 · Sheridan
USGS Topo · 1:250,000
1962 · Sheridan
USGS Topo · 1:250,000
1967 · Klondike Ranch
USGS Topo · 1:24,000
1967 · Robinson Canyon
USGS Topo · 1:24,000
1967 · North Ridge
USGS Topo · 1:24,000
1970 · Purdy Reservoir
USGS Topo · 1:24,000
1970 · Buffalo
USGS Topo · 1:24,000