
The Continental Divide runs through this high-country terrain, marking the boundary within the Helena National Forest where the borders of Lewis and Clark and Powell counties meet. This 1980s data records a landscape defined by its mining legacy, with several unnamed Prospect sites, a Mine Shaft, and an Adit scattered across the slopes near Esmeralda Hill and Prospect Basin.
52 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
1947 · Butte
USGS Topo · 1:250,000
1958 · Butte
USGS Topo · 1:250,000
1958 · Avon
USGS Topo · 1:62,500
1959 · Elliston
USGS Topo · 1:62,500
1960 · Butte
USGS Topo · 1:250,000
1962 · Butte
USGS Topo · 1:250,000