Cody to Coeur d'Alene Road Trip Guide

The route from Cody, Wyoming, to Coeur d'Alene, Idaho, spans roughly 530 miles, traversing the rugged backbone of the Rocky Mountains. This drive follows US-14, I-90, and US-95, crossing the Continental Divide twice. A key fact: the highway skirts the southern edge of Yellowstone National Park, but the park entrance is 50 miles north of the direct route.

Expect a driving time of 8 to 9 hours without stops. The landscape shifts from Wyoming's high desert basins to Montana's forested ranges, then into Idaho's panhandle timber country. This guide helps you decide the best stops, how long to drive, and whether it's worth driving this scenic corridor.

For a deeper strategy on discovering stops, read how to find the best stops and hidden gems between cities.

Natural landscapes include the Bighorn Basin's badlands, the Bighorn Mountains' alpine forests, the Montana plains, and the Idaho panhandle's cedar groves. A must-see is the Medicine Wheel National Historic Landmark (via US-14A) at 9,642 ft elevation.

• UNESCO World Heritage Sites: There are none directly on route, but Yellowstone (a UNESCO site) is a two-hour detour. Nearby is the Old Town of Yellowstone (not UNESCO) but worth a stop.
• Climatic conditions: Summers 70-90°F; winters 10-30°F with snow. Fall colors peak late September. Best months: May-October.

Local commerce: In Sheridan, Wyoming, stock up at the historic downtown farmer's market (summer Saturdays). Billings offers the Rimrock Mall. For unique gifts, try the Missoula Art Museum shop. Culinary infrastructure ranges from fast food to steakhouses; notable is the Aroi Thai in Bozeman.

Hidden off-route spots: The Bighorn Canyon National Recreation Area (south of Lovell) offers boating and hiking. Along I-90, the town of Livingston has a charming main street and the Depot Center museum.

US-14 from Cody to Greybull is a well-maintained two-lane highway through the Bighorn Basin. At Greybull, you can continue on US-14 over the Bighorn Mountains via the Medicine Wheel Passage (alternate scenic route) or take I-90 east to Sheridan. The I-90 corridor through Montana is a four-lane interstate with frequent services.

• Fuel stops: Every 30-50 miles along I-90; sparser on US-14 (plan at Greybull or Lovell).
• Rest areas: Official rest stops at WY/MT border near Sheridan, and at various Montana exits (e.g., Exit 105 near Big Timber).
• Road quality: Excellent on interstates; US-14 is good but watch for wildlife at dawn/dusk.

Fuel and route economics: Gas prices vary, with Montana generally cheaper than Wyoming or Idaho. A full tank (15 gal) in Cody costs about $45; in Missoula, about $40. On I-90, average fuel station interval 35 miles. Consider the best stops and hidden gems for unique fuel station cafes.

Safety: I-90 is guarded with rumble strips and good signage. On US-14, watch for animals (elk, deer) and sudden weather. Carry water, blankets, and a spare tire. Winter travel requires chains or snow tires.

• Family and child suitability: Rest stops with playgrounds at Sheridan (WY welcome center) and near Butte (MT). The Museum of the Rockies in Bozeman (dinosaur fossils) is excellent for kids.
• Pet-friendly framework: Many rest areas have dog runs. Pet-friendly hotels include La Quinta in Billings and Missoula. Always leash your pet near wildlife.

Fatigue management: Plan to stop every 2 hours. Good rest zones include the Bighorn National Forest pullouts (mile 60 on US-14), and the rest area at Exit 274 near Greycliff, MT. Coffee and quick nap spots: Starbucks in Bozeman, or a local diner in Butte (e.g., Butte Café).

Infrastructure safety: Cell coverage is patchy in the Bighorn Basin and between Sheridan and Buffalo. Download offline maps. Emergency services: Dial 911; highway patrol responds quickly on interstates.