SH-28 highlighted in red
|Maintained by ITD|
|Length||135.645 mi (218.299 km)|
Idaho State Highway 28 begins at an intersection with U.S. Route 93 in the community of Salmon. The highway proceeds southeast through the Lemhi Valley, traveling parallel to the Lemhi River for several miles. The road passes through Leadore, intersecting Idaho State Highway 29 while in the community. Just after exiting the town, the highway passes the Leadore Airport. The roadway continues southeastward for a short distance before bending south and proceeding through the Lemhi Valley. After a long distance, the route bends back southeastward, proceeding to an intersection with State Highway 22. The route continues southeast before passing the Mud Lake Airport, and intersecting ID 33. The road runs concurrently for several miles, traveling eastward. The highway bends southeast, and reaches its western terminus, an interchange with Interstate 15. The entire length of the route is designated as the Sacajawea Historic Byway by the state of Idaho.
|Jefferson||||0.000||0.000||I-15 / SH-33||Eastern terminus; eastern end of SH-33 concurrency|
|||15.150||24.382||SH-33||Western terminus of SH-33 concurrency|
|||15.212||24.481||ID-28 Connector||Northern terminus of SH-28 Connector|
|Lemhi||Leadore||90.229||145.209||SH-29||Western terminus of SH-29|
|Tendoy||115.734||186.256||Lewis and Clark Back Country Scenic Byway||Western terminus of the byway|
|Salmon||135.645||218.299||US-93 (Challis Street)||Western terminus|
|1.000 mi = 1.609 km; 1.000 km = 0.621 mi|
- "Milepost Log for Highway 28". Idaho Transportation Department. Archived from the original on 2012-05-12. Retrieved 2008-05-15.
- Google (January 29, 2013). "Overview Map of Idaho State Highway 28" (Map). Google Maps. Google. Retrieved January 29, 2013.
- Idaho Transportation Department. "Sacajawea Scenic Byway". Idaho's Scenic Byways. America's Byways. Archived from the original on April 30, 2013. Retrieved January 29, 2013.
Media related to Idaho State Highway 28 at Wikimedia Commons