Price to Stanley: Utah's Cliffs to Idaho's Sawtooths

The drive from Price, Utah to Stanley, Idaho spans roughly 610 miles and about 10 hours of pure driving time, but the real story is the dramatic shift from Utah's high desert to Idaho's alpine Sawyer Mountains.

This route crosses the Continental Divide at 7,000 feet, passes through the world's largest concentration of dinosaur fossils, and ends in a former silver-mining town now famous for its hot springs and rugged peaks.

Before you go, check the weather: mountain passes can get snow even in summer, and Stanley's elevation of 6,260 feet means cool nights year-round.

Avoid driving after dark on Idaho 75, as wildlife like elk and deer frequently cross the road. Always carry water and warm layers, as weather can turn quickly in the mountains.

For families, the Dinosaur National Monument is a hit, as is the not-to-be-missed annual Stanley Summer Fest in July. The drive itself has long stretches without services, so plan stops every 2-3 hours.

Pet owners will appreciate the many trailheads along the route where dogs can stretch their legs, but note that in national parks, pets must remain on a leash and are not allowed on unpaved trails.

Rest areas are plentiful on interstates (I-15, I-84) but scarce on two-lane highways: the Lava Hot Springs rest stop in Idaho is a clean, well-lit exception.

To fight fatigue, consider breaking the drive at the historic Bald Mountain Roadhouse in Stanley—a classic stop frequented by mountain bikers and hikers.

The first standout is the San Rafael Swell, a 40-mile-long geologic dome of red rock canyons visible from I-70 near Green River. In Helper, Utah, you'll find a surprisingly vibrant arts district housed in historic mining buildings.

Western edge of the route sits the UNESCO-listed Dinosaur National Monument, home to over 1,500 exposed dinosaur bones. The Quarry Exhibit Hall allows visitors to touch a wall of fossils.

Near the Idaho border, the city of Twin Falls offers the Snake River Canyon, and further north, the Shoshone Falls—often called the Niagara of the West—plunges 212 feet.

Beyond Shoshone, the landscape turns to sagebrush plains before climbing into the Sawtooth National Recreation Area, where granite peaks and glacial lakes dominate.

The most direct route follows US-6 west to I-15 north through Provo and Salt Lake City, then I-84 west to Twin Falls, Idaho, before heading north on US-93 and Idaho State Highway 75.

Fuel prices are generally lower in Utah than Idaho, so top up in Provo or Salt Lake City if you can. The last major gas station before Stanley is in Ketchum, about 60 miles south.

• Cost for a standard sedan: roughly $110 in gas at current prices (~$3.50/gallon average for regular).
• Road conditions: US-6 over Soldier Summit is well-maintained but winding; Idaho 75 through the Sawtooth Corridor is scenic but narrow with limited guardrails.
• Cell service: Expect spotty coverage between Price and Green River, and again north of Ketchum.

If you're towing or driving an RV, take US-89 instead of US-6 to avoid the steep grade over Soldier Summit.