Boulder Valley serves as the focal point for agricultural and ranching activity in this southern Jefferson County landscape. Along the winding course of the Boulder River, a network of ranch access roads and the Carey-Twohy Ditch illustrate the complex irrigation and water management required for high-altitude Montana ranching. To the north, the terrain transitions into the heavily timbered slopes of the Deerlodge National Forest, where a series of steep drainages such as Hunting Gulch and Clarke Gulch dominate the topography. Localized landmarks like Blazing Place and Watertank Gulch point to the area's specialized land use, while reliable water sources including Tacoma Spring and Deadman Spring remain critical features in the high country. The map also traces the path of Elkhorn Rd, linking the valley floor to the more remote parklands of Tacoma Park.
43 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