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The Heart Mountain Irrigation District is comprised of 31,120 irrigable acres north of the Shoshone River from Cody, Wyoming to about seven miles north of Ralston, Wyoming. The Heart Mountain Canal provides water for the Heart Mountain division.

The canal begins at the inlet to the Shoshone River Siphon, which spans the river below the Shoshone Canyon conduit outlet; the canal has an initial capacity of 914 cubic feet per second and a length of about 28 miles. About 140 miles of distribution laterals and 145 miles of open and closed drains also serve the Heart Mountain division.

The facility was built by the Bureau of Reclamation in the late 1940’s.