The Uncompahgre River valley serves as the central artery for this portion of Ouray County, where the settlement of Colona and the Colona Cemetery sit along the corridor of the river and irrigation works like the McDonald Ditch. The landscape transitions sharply from the fertile river bottom to the high elevations of Sims Mesa and Log Hill Mesa, cut by drainage systems including Horsefly Creek and Dolores Creek.
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This is the sole edition of this map. No revisions or reprints were ever made.
1902 · Ouray
USGS Topo · 1:62,500
1904 · Ouray
USGS Topo · 1:62,500
1909 · Montrose
USGS Topo · 1:125,000
1911 · Montrose
USGS Topo · 1:125,000
1956 · Montrose
USGS Topo · 1:250,000
1957 · Cerro Summit
USGS Topo · 1:24,000
1959 · Montrose
USGS Topo · 1:250,000
1960 · Montrose
USGS Topo · 1:250,000
1962 · Montrose East
USGS Topo · 1:24,000
1962 · Montrose West
USGS Topo · 1:24,000