The Big Lost River corridor in Custer County defines this landscape, revealing a complex network of early 21st-century water management infrastructure designed for high-altitude valley agriculture. The presence of the Moore Diversion and associated waterways like Moore Canal, Burnett Ditch, and Island Ditch illustrates the vital importance of irrigation in this arid environment. To the east, the topography rises sharply toward the massif of King Mountain, a dominant landmark reached via the crossing at Beaverland Pass. The map traces a series of dramatic drainages including Ramshorn Canyon, Big Burnett Canyon, and Limekiln Canyon, which cut westward from the high peaks toward the valley floor. Small-scale rural transit is marked by local connectors such as Darlington Ln and King Canyon Rd, which tie the scattered ranching and agricultural interests to the primary water sources like Big Spring.
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This is the sole edition of this map. No revisions or reprints were ever made.
1955 · Idaho Falls
USGS Topo · 1:250,000
1958 · Idaho Falls
USGS Topo · 1:250,000
1969 · Darlington
USGS Topo · 1:24,000
1969 · Arco Pass
USGS Topo · 1:24,000
1969 · Ramshorn Canyon
USGS Topo · 1:24,000
1969 · Howe NW
USGS Topo · 1:24,000
1969 · Sunset Peak
USGS Topo · 1:24,000
1969 · Methodist Creek
USGS Topo · 1:24,000
1972 · Arco North
USGS Topo · 1:24,000
1972 · Arco Hills
USGS Topo · 1:24,000