Triple Crossing Reservoir and its surrounding watershed define this portion of Valley County, characterized by a complex network of ephemeral drainages and constructed water catchments. The landscape is carved by deep seasonal channels such as Middle Fork Lone Tree Cr and Tony Coulee, reflecting a terrain managed for livestock and resource conservation. Scattered throughout the territory are several named catchments, including Finn Reservoir, Ult Reservoir, and the suggestively named Ruins Reservoir, which indicate a long history of water management in this arid stretch of Montana. Transportation through the area is restricted to isolated corridors like Ridge Rd and the Triple Cross Access Rd, which serve the high ground between the S Fork Willow Cr and the northern coulees.
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This is the sole edition of this map. No revisions or reprints were ever made.
1954 · Jordan
USGS Topo · 1:250,000
1954 · Glasgow
USGS Topo · 1:250,000
1956 · Jordan
USGS Topo · 1:250,000
1957 · Glasgow
USGS Topo · 1:250,000
1958 · Glasgow
USGS Topo · 1:250,000
1958 · Jordan
USGS Topo · 1:250,000
1964 · Jordan
USGS Topo · 1:250,000
1973 · Triple Crossing Reservoir East
USGS Topo · 1:24,000
1973 · Triple Crossing Reservoir West
USGS Topo · 1:24,000
1973 · Niles Coulee
USGS Topo · 1:24,000