
The agricultural and hydraulic development of Fremont County is centered on Ashton and the neighboring settlement of Marysville. This high-altitude landscape is defined by an intricate network of irrigation systems, including the Marysville Canal, Farmers Own Canal, and the North Lateral Marysville Canal, which divert water from the Henry's Fork and Fall River to support the surrounding farmland. The topography transitions from the organized grid of the valley floor into the steep, canyon-riven terrain of the Targhee National Forest to the northeast.
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This is the sole edition of this map. No revisions or reprints were ever made.
1949 · Newdale
USGS Topo · 1:24,000
1950 · Newdale
USGS Topo · 1:24,000
1955 · Ashton
USGS Topo · 1:250,000
1955 · Driggs
USGS Topo · 1:250,000
1958 · Driggs
USGS Topo · 1:250,000
1958 · Ashton
USGS Topo · 1:250,000
1960 · Ashton
USGS Topo · 1:250,000
1962 · Driggs
USGS Topo · 1:250,000
1965 · Lemon Lake
USGS Topo · 1:24,000
1965 · Ashton
USGS Topo · 1:24,000