The settlement of Chesterfield stands at the heart of this Idaho landscape, where the high desert meets a complex network of agricultural irrigation. In the early 21st century, the region's character is defined by the Portneuf River and its various tributaries and diversions, including the Portneuf Marsh Valley Irrigation Company Feeder Canal and Downey Canal. These water systems, alongside Toponce Cr and Eighteenmile Cr, support the rural life and ranching economy of Caribou County.
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This is the sole edition of this map. No revisions or reprints were ever made.
1917 · Portneuf
USGS Topo · 1:62,500
1948 · Bancroft
USGS Topo · 1:62,500
1949 · Bancroft
USGS Topo · 1:62,500
1954 · Pocatello
USGS Topo · 1:250,000
1955 · Preston
USGS Topo · 1:250,000
1958 · Pocatello
USGS Topo · 1:250,000
1958 · Preston
USGS Topo · 1:250,000
1962 · Preston
USGS Topo · 1:250,000
1968 · Bear Camp Gulch
USGS Topo · 1:24,000
1968 · Haystack Mtn
USGS Topo · 1:24,000