The Gem Valley irrigation network defines this corner of Caribou County, where the Bear River flows past the western edge of the Bear River Range. This 2013 landscape shows a complex system of water management, including the Last Chance Canal, Bench A Canal, and the Tanner Canal, which turned this arid high-elevation valley into a productive agricultural zone. The settlement of Grace serves as the primary hub, anchored by its proximity to the Grace Cem and the small Simpson Airport to the north. To the east, the terrain rises sharply into the Cache National Forest, a region marked by steep-walled features like Nelson Canyon and McPherson Canyon. Down in the valley, smaller settlements such as Niter and Bench represent the rural community structure that persisted into the early 21st century. Unique geological landmarks like Ice Cave Knoll highlight the distinct volcanic and mountain topography of southeastern Idaho.
80 named features on this map. Tap any name to fly to it.
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This is the sole edition of this map. No revisions or reprints were ever made.
1915 · Preston
USGS Topo · 1:96,000
1918 · Preston
USGS Topo · 1:125,000
1948 · Bancroft
USGS Topo · 1:62,500
1948 · Soda Springs
USGS Topo · 1:62,500
1949 · Bancroft
USGS Topo · 1:62,500
1949 · Soda Springs
USGS Topo · 1:62,500
1955 · Preston
USGS Topo · 1:250,000
1958 · Preston
USGS Topo · 1:250,000
1962 · Preston
USGS Topo · 1:250,000
1969 · North Canyon
USGS Topo · 1:24,000