Jackson WY to Pierre SD Road Trip Guide

The drive from Jackson, Wyoming to Pierre, South Dakota spans roughly 650 miles across the heart of the American West. Most of the journey follows I-90 and I-25, with a scenic deviation through the Bighorn Mountains. The route crosses the Continental Divide twice and passes through the historic Oregon Trail corridor. Remarkably, the highest point along the highway is the Powder River Pass at 9,666 feet, where summer snow flurries are not unheard of.

This guide breaks down the journey into digestible segments, focusing on natural wonders, fuel strategy, and family needs. For a deeper dive into planning custom stops, see our article on how to find the best stops and hidden gems between cities.

Infrastructure Safety and Road Quality

Roads are generally good: I-90 and I-25 are maintained. US highways can have potholes in spring. In Wyoming, high winds can be dangerous for RVs and trailers. Snow possible any month at high passes. Cell service drops between Dubois and Shoshoni, and east of Casper in some valleys. Carry a paper map. Crime is low; property theft in tourist spots is the main concern.

Family and Child Suitability

The route is family-friendly with many stops. Children will love the National Bighorn Sheep Center in Dubois (touch exhibits). In Casper, the Tate Geological Museum has dinosaur fossils. In Rapid City area, Reptile Gardens and Bear Country USA. In Pierre, the South Dakota Discovery Center has hands-on science. Bathroom breaks: every 2 hours plan for a rest area or gas station. Most towns have parks.

• 1 hr: Dubois (sheep center)
• 2.5 hr: Casper (museum)
• 4 hr: Rapid City (dinosaur park)
• 6 hr: Chamberlain (visitor center)

Pet-Friendly Framework

Most hotels in Jackson, Buffalo, Rapid City, and Pierre accept pets (often a fee). National forests and BLM land allow dogs on leash. Badlands National Park permits dogs on paved areas only. Rest stops have pet areas. In hot weather, never leave dog in car; many gas stations offer water bowls.

Hidden Off-Route Spots

Detour 20 miles north of I-90 to Devils Tower National Monument (the first U.S. national monument). East of Casper, the Ghost Town of Independence Rock is a historic landmark. Near Shoshoni, the Legend Rock Petroglyph Site has over 300 ancient carvings (requires dirt road). In South Dakota, the Minuteman Missile National Historic Site offers Cold War history.

• Devils Tower (WY, 20 mi detour)
• Legend Rock (WY, dirt road)
• Minuteman Missile Site (SD, near I-90)

Fatigue Management and Rest Zones

Plan stops every 2-3 hours. Key rest areas: Togwotee Pass (scenic pullout), Riverton rest area (I-25), Buffalo rest area (I-90), Chamberlain rest area (I-90). In Jackson, the National Elk Refuge has a pullout. In Dubois, a park with benches. In Casper, the Platte River Parkway offers a walking trail. Pierre's La Framboise Island Nature Area is good for a stretch.

Recommended stop schedule:

1. Jackson to Dubois (1 hr drive, stretch at Bighorn Sheep Center)
2. Dubois to Riverton (1.5 hrs, gas and coffee)
3. Riverton to Casper (2 hrs, lunch and museum)
4. Casper to Buffalo (1.5 hrs, walk at Bighorn NF)
5. Buffalo to Rapid City (2 hrs, Badlands detour)
6. Rapid City to Chamberlain (2 hrs, waterfalls at Palisades)
7. Chamberlain to Pierre (1 hr, Oahe Dam overlook)

Natural Landscapes and Attractions

The route offers dramatic shifts from alpine tundra to high desert to river bluffs. Must-see natural stops include the Grand Tetons (departing Jackson), Togwotee Pass (9,658 ft), and the Wind River Canyon south of Thermopolis. In Wyoming, the Bighorn National Forest near Buffalo offers scenic byways. In South Dakota, the Badlands National Park is a short detour off I-90; the park's layered rock formations are world-class. The Missouri River at Pierre is part of the Lewis and Clark National Historic Trail.

• Grand Teton National Park (Jackson)
• Togwotee Pass (Continental Divide)
• Wind River Canyon (US-20)
• Bighorn Mountains (US-87/Alt 14)
• Badlands National Park (SD, detour)

UNESCO World Heritage Sites

No UNESCO sites directly on route, but the nearby Yellowstone National Park (north of Jackson) is a World Heritage site. Also, the Stonehenge replica in Rapid City? Not official. However, the entire journey traverses the geographic heart of the Lewis and Clark Expedition, which is a National Historic Trail.

Local Commerce and Culture

Jackson Hole is a tourist hub with art galleries and cowboy bars. In Dubois, the Headwaters Arts & Crafts Co-op features local Native American jewelry. Shoshoni has a small trading post. Casper boasts the National Historic Trails Interpretive Center (worth 1 hour). In Pierre, the South Dakota Cultural Heritage Center details plains history.

• Jackson: Million Dollar Cowboy Bar
• Dubois: National Bighorn Sheep Center
• Casper: Trails Center
• Pierre: Cultural Heritage Center

Culinary Infrastructure

Jackson has fine dining (Snake River Grill) and casual burgers (Bubba's). Dubois: The Cowboy Cafe serves homestyle meals. Shoshoni has fast food. Casper: The Racca's Pizzeria Napoletana is excellent. Buffalo: The Occidental Hotel's saloon. In South Dakota, Chamberlain has Al's Oasis (buffet). Pierre: La Minestra for Italian, and the delicious Breadroot Cafe for healthy options.

• Breakfast: Bubba's Bar (Jackson)
• Lunch: Al's Oasis (Chamberlain, SD)
• Dinner: Racca's (Casper)

Highways and Navigation

The primary route is I-90 east from Sheridan, WY to Rapid City, SD, then I-25 south to Pierre. From Jackson, take US-26/US-287 through Dubois and over Togwotee Pass. At Shoshoni, head east on US-20/US-26 to Casper. From Casper, I-25 north to Buffalo, then I-90 east. The total driving time is about 10 hours without stops, but plan for 11-13 with breaks.

Fuel and Route Economics

Gas stations are sparse in Wyoming between Jackson and Casper (approx. 200 miles). Fill up in Jackson (premium may be needed for high altitude). In Casper and Buffalo, prices are lower. Further east, Rapid City has competitive prices. In South Dakota, stations in Pierre are standard. Average gas price along route: $3.50/gal. A typical sedan costs $80-110 for the trip. Diesel and EV charging are limited; EVs should plan for Level 2 charging in larger towns only.

• Jackson to Dubois: 56 miles, no stations.
• Dubois to Shoshoni: 100 miles, few stations in Riverton.
• Shoshoni to Casper: 120 miles, stations in Powder River.
• Casper to Pierre: 250 miles, frequent stations.

Unique Driving Quirks

On US-26 east of Shoshoni, the road is straight and flat but prone to crosswinds. The stretch through the Wind River Reservation has no services for 50 miles. In South Dakota, I-25 south of Chamberlain follows the Missouri River with rolling hills; beware of deer at dusk.