
Helmville sits as the central point of interest in this 1968 landscape, where ranching and water management define the valley floor. The map illustrates a complex irrigation network essential for high-altitude agriculture, featuring the Douglas Creek Canal and Canarway Canal alongside natural waterways like Nevada Creek and Lincoln Slough. These man-made channels diverge from the natural flow of Douglas Creek to support the surrounding acreage.
26 named features on this map. Tap any name to fly to it.
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2 editions found
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