Holter Lake dominates this portion of Lewis and Clark County, where the Missouri River forms a dramatic waterway through the canyon terrain. The map identifies the Gates of the Rocky Mountains, a landmark of early American exploration, alongside modern recreational infrastructure like Holter Lake Campground and Juniper Campground. The landscape is marked by the Mann Gulch Fire Smokejumper Memorials, commemorating the 1949 wildfire in Mann Gulch, which remains a significant site in forest management history.
25 named features on this map. Tap any name to fly to it.
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This is the sole edition of this map. No revisions or reprints were ever made.
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