Soda Springs Geyser gushing water into the air, with trees in the background — Soda Springs Geyser at Geyser Park, Soda Springs. Photo credit: Idaho Tourism.

a river filled with rocks, with a hill covered in bushes on the right side — Last Chance Canal Flume on the Bear River, Grace. Photo credit: Idaho Tourism.

a group of people looking at a spring gushing out water from the side of a brush covered hill — Hooper Springs Park, Soda Springs. Photo credit: Idaho Tourism.

A family of four walking down the stairs and out of a historic brick building in Chesterfield. — Holbrook Mercantile General Merchandise, Chesterfield Historic Town Site. Photo credit: Visit Idaho.

a sign depicting information about Caribou Mountain, including a map and historical illustrations — Caribou Mountain, near Wayan. Photo credit: Caribou Loop Trail.

a car driving past a grassy area with a creek winding through it, beside a mountain covered with trees — Tincup Creek, near Pine Bar Campground. Photo credit: Idaho Tourism.

a large reservoir surrounded by green landscape — Blackfoot Reservoir, near Henry Stampede Park, Soda Springs. Photo credit: Idaho Tourism.

close up of two bales of hay, with Red Rock Pass in the backround — Red Rock Pass, near Downey. Photo credit: Idaho Tourism.

a wooden sign for Red Rock Pass, including a map of Idaho — Red Rock Pass, near Downey. Photo credit: Idaho Tourism.

Pioneer Historic Byway

The Pioneer Historic Byway takes visitors on an adventure through southeastern Idaho. Marvel in the rugged beauty of Red Rock Pass. Discover the world’s only captive geyser in Soda Springs. Or journey to Historic Chesterfield, a ghost town dating back to the 1880s with 27 original structures now on the National Historic Register.

Length

114 miles
183 km

Time

2 hours,
13 minutes

Region

Southeastern Idaho

When to Visit

Year-round

31 Byways. 31 Ways to Be Inspired.

A variety of scenic, natural, historic, recreational, archeological and cultural experiences can be found on Idaho’s 31 scenic byways. View the video to get a taste of the adventures that await you, and start planning your next road trip.

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Road Trip Tips

Turn-by-Turn Directions: Begins at the Utah state line and follows U.S. 91, then Idaho 34, north to U.S. 30 and then east to Soda Springs where it meets the Oregon Trail-Bear Lake Scenic Byway. From there, north on Idaho 34 toward the Wyoming state line.

Road Conditions: This is a heavy snowfall area. The section of Idaho 34 between Soda Springs and the Wyoming border may occasionally be closed during the winter.

Full Services in: Preston and Soda Springs

Partial services in: Franklin and Grace

Motorcycle Route: Yes

Full Services: When gas, food and lodging are available

Partial Services: When gas and a few other facilities are available

Nearby Adventures

Take to the trails on a thrilling ATV ride, enjoy an afternoon of birdwatching or explore a historic town. Find out what southeastern Idaho has to offer on the Pioneer Historic Byway.