Boulder serves as the primary settlement on this landscape, positioned where the Boulder River and Little Boulder River converge. The town's grid, including streets like N Main and E Centennial Ave, sits adjacent to the Boulder Cem and the Boulder Airport. Much of the southern and eastern terrain is defined by the high country of the Deerlodge National Forest, where features such as Ryan Mtn and Bull Mtn rise above deep drainages like Crazyman Gulch and Black Canyon. The map records a complex network of forest roads and trails, including Chinese Diggings Rd and Beaver Creek Trl, which provide access to remote water sources like Manganese Spring and Schoolhouse Spring. In the valley floor, the Boulder River Bridge carries traffic over the water near the Boulder Valley area, highlighting the historical importance of these river crossings for mountain commerce.
74 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 · 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 · 1:250,000
1903 · Helena
USGS Topo · 1:250,000
1947 · Butte
USGS Topo · 1:250,000
1948 · White Sulphur Springs
USGS Topo · 1:250,000
1950 · Devils Fence
USGS Topo · 1:62,500
1950 · Jefferson City
USGS Topo · 1:62,500