Sieben Ranch anchors the southwestern corner of this drainage basin, where the waters of Clark Creek and Little Prickly Pear Creek converge near the winding path of Recreation Rd S. This landscape is defined by the steep-sided cuts of Rose Gulch, Spring Gulch, and Bear Gulch, which feed into the extensive Sheep Creek system. To the northeast, the terrain opens toward the Missouri River, dominated by the infrastructure of Holter Dam and the waters of Holter Lake.
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1886 · Great Falls
USGS Topo · 1:250,000
1886 · Fort Logan
USGS Topo · 1:250,000
1889 · Helena
USGS Topo · 1:250,000
1893 · Helena
USGS Topo · 1:250,000
1899 · Helena
USGS Topo · 1:250,000
1903 · Helena
USGS Topo · 1:250,000
1943 · Hogan
USGS Topo · 1:125,000
1947 · Butte
USGS Topo · 1:250,000
1948 · White Sulphur Springs
USGS Topo · 1:250,000
1954 · Great Falls
USGS Topo · 1:250,000