page_title: Idaho State Highway 34
section_title: Route description
hierarchical_section_title: Idaho State Highway 34 / Route description
caption_attribution_description: Us30 West Bound @ Soda Springs ID
context_page_description: State Highway 34 is a state highway serving Franklin and Caribou counties in southeastern Idaho. The highway runs northeasterly along the Bear River from Preston towards Soda Springs and the Wyoming state line, where it terminates and becomes Wyoming Highway 239.
  The entire highway is designated as the Pioneer Historic Byway, a National Scenic Byway following a historic pioneer route. The designation continues south on U.S. Route 91 through Preston and Franklin towards the Utah state line.
context_section_description: State Highway 34 begins north of downtown Preston at an intersection with U.S. Route 91. The highway, temporarily concurrent with State Highway 36, travels north from Preston through the communities of Thatcher and Grace, following the course of the Bear River. North of Grace, State Highway 34 intersects U.S. Route 30 and becomes concurrent with the highway while continuing east into Soda Springs. From Soda Spring, the highway continues north towards the Blackfoot Reservoir and Grays Lake National Wildlife Refuge, turning east to cross the Caribou Mountains. State Highway 34 ends at the Wyoming state line north of Freedom, where Wyoming Highway 239 begins its short route to U.S. Route 89.
caption: Westbound US 30/SH-34 in Soda Springs
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