
Thomas Fork Valley serves as the central artery for this landscape on the Idaho-Wyoming border, where the high-altitude agricultural tradition of Bear Lake County is clearly visible. The settlement of Geneva sits near the head of a complex irrigation network, including the Geneva Ditch and Halls Ditch, which channel water across the valley floor. To the west, the Preuss Range rises sharply, while the Sublette Range dominates the eastern horizon in Wyoming.
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1909 · Montpelier
USGS Topo · 1:125,000
1911 · Montpelier
USGS Topo · 1:125,000
1936 · Cokeville
USGS Topo · 1:96,000
1942 · Cokeville
USGS Topo · 1:125,000
1955 · Preston
USGS Topo · 1:250,000
1958 · Preston
USGS Topo · 1:250,000
1962 · Preston
USGS Topo · 1:250,000
1967 · Huff Lake
USGS Topo · 1:24,000
1967 · Marse
USGS Topo · 1:24,000
1967 · Salt Flat
USGS Topo · 1:24,000