Helmville serves as the central hub of this ranching and mining landscape in Powell County. The settlement is anchored by the Helmville Post Office, the Helmville Fire Dept, and two prominent local burial grounds: Saint Thomas Cemetery and Helmville Cemetery. The surrounding terrain is marked by significant extractive history, evidenced by the Treasure State Mine to the south and the Roselle Mine and Snowflake Mine to the north. Water management is a defining characteristic of the valley, with the North Helmville Canal and Lincoln Slough diverting flow through the area. Towards the south, the landscape rises toward the peak of Hoodoo Mountain, while the drainage of Cottonwood Creek and its various forks like Wet Cottonwood Creek define the western reaches of the quadrangle.
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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
1919 · Drummond
USGS Topo · 1:125,000
1921 · Drummond
USGS Topo · 1:125,000
1947 · Butte
USGS Topo · 1:250,000
1958 · Butte
USGS Topo · 1:250,000
1958 · Drummond
USGS Topo · 1:62,500
1958 · Garrison
USGS Topo · 1:62,500