
Middle Fork Porcupine Creek and its tributary, West Fork Porcupine Creek, carve through this section of Valley County, defining the drainage patterns of a high prairie landscape. The terrain is marked by significant topographical shifts at Cameron Point and the geological formation known as The Pass, which likely served as a natural corridor through the breaks. While the area remains largely undeveloped, a network of local routes such as Fuhrman Rd and Eide Rd provide access to remote ranching land and water sources like Calderwood Spring. The map clearly delineates the township and range boundaries of t33n r40e and t33n r41e, reflecting the enduring Public Land Survey System that governs this part of Montana.
14 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.
1918 · Porcupine Valley
USGS Topo · 1:62,500
1919 · Boundary
USGS Topo · 1:125,000
1943 · Glasgow
USGS Topo · 1:125,000
1954 · Glasgow
USGS Topo · 1:250,000
1957 · Glasgow
USGS Topo · 1:250,000
1958 · Glasgow
USGS Topo · 1:250,000
1969 · Chapman Coulee NE
USGS Topo · 1:24,000
1973 · Baylor SE
USGS Topo · 1:24,000
1973 · Baylor NE
USGS Topo · 1:24,000
1973 · Baylor
USGS Topo · 1:24,000