
East Helena serves as the industrial and transportation nexus for this region, situated where the Northern Pacific and Great Northern railroads converge. The map reflects a landscape defined by water management and mineral extraction, featuring a complex network of flumes, ditches, and an aqueduct north of the city near Prickly Pear Creek. The Missouri River's influence is clear through the presence of Lake Helena and Hauser Lake, while the eastern hills are etched with numerous gulches such as York Gulch and Cave Gulch.
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4 editions found
1886 · Fort Logan
USGS Topo · 1:250,000
1889 · Helena
USGS Topo · 1:250,000
1893 · Helena
USGS Topo · 1:250,000
1899 · Boulder
USGS Topo · 1:125,000
1899 · Helena
USGS Topo · 1:62,500
1899 · Helena
USGS Topo · 1:250,000
1903 · Helena
USGS Topo · 1:250,000
1947 · Butte
USGS Topo · 1:250,000
1948 · White Sulphur Springs
USGS Topo · 1:250,000
1950 · Jefferson City
USGS Topo · 1:62,500