Interstate 15 North - Idaho to Dillon

Kidd Lane joins Interstate 15 at Exit 29 with Red Rock Road (Old U.S. 91) at the Union Pacific Railroad siding of Kidd.
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07/05/16
Red Rock Road (Old U.S. 91) ties into Interstate 15 at a diamond interchange (Exit 37) adjacent to the Union Pacific Railroad siding of Red Rock.
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07/05/16
Advancing north from mile marker 40, Interstate 15 runs along the east side of Clark Canyon Reservoir.
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07/05/16
Montana Secondary Highway 324 stems west from the diamond interchange at Exit 44 across Clark Canyon Dam.
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07/05/16
S-324 travels west from Clark Canyon Reservoir to the rural settlement of Grant along a 34.4 mile long course to Idaho State Highway 29 at Bannock Pass.
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07/05/16
Interstate 15 north crosses the Beaverhead River for a third time over the Pipe Organ Bridge.
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07/05/16
Photo Credits:
- Alex Nitzman: 07/05/16
Page Updated Tuesday January 20, 2026.


