Gilbert to Kemmerer Drive Guide: Scenic Routes & Stops

The drive from Gilbert, Arizona to Kemmerer, Wyoming covers roughly 870 miles along I-17, I-40, US-89, and I-80, crossing three states and three distinct geological provinces. You'll start in the Sonoran Desert's saguaro-studded plains and finish in the high desert sagebrush of the Wyoming Basin, with the Colorado Plateau and the Wasatch Range in between. This is a route where the road itself tells a story of ancient seas, volcanic upthrusts, and the Oregon Trail's westward migration.

Because the journey spans such varied climates, expect temperature swings from 100°F in Arizona summer to 50°F at elevation, even in July. The best planning approach is to treat the drive as a target, not a race, and to build in time for the unexpected scenery. The question is not just 'how long to drive Gilbert, AZ to Kemmerer, WY' but what you'll miss if you rush.

The most direct route uses I-17 north out of the Phoenix metro, then I-40 east to Flagstaff, before angling northeast on US-89 through Page, Kanab, and into Utah. From Salt Lake City, I-80 east delivers you to Kemmerer, but a more scenic alternative slices through Capitol Reef National Park and Moab before rejoining I-80 near Green River, Wyoming. The latter adds about 100 miles but is far more rewarding for sightseers.

Fuel economics are a key planning factor. Gas prices typically drop about 10-15% once you leave Arizona and enter Utah, so fill up in Flagstaff if you're on a budget. Expect to fuel up about every 250-300 miles, with the longest stretch without services being between Green River, UT and Green River, WY (roughly 200 miles) on I-70/I-80. All highways are well-maintained, but note that I-80 in Wyoming can close in winter blizzards, so check conditions from November through April.

• Total drive time: about 13-15 hours without stops.
• Best departure time: early morning to avoid Phoenix traffic.
• Mountain passes: Donner Pass (UT) and Echo Canyon (WY) require chains in snow.
• Rest stops every 50-100 miles on interstates; some have vending machines.

Driver fatigue is the most common hazard on this long haul. Plan to stop every 2 hours or 100 miles, and use rest areas that have shade—like the ones at Seligman and Beaver, Utah. If you're traveling with kids, consider a break at the Kolob Canyons Visitor Center in Zion National Park (exit 40 on I-15), which has shallow pools for wading and a short paved trail easy for little legs. For a longer stretch, the Moab Giants museum outside Moab offers outdoor dinosaur tracks and interactive exhibits—a great way to burn off energy.

Pets are generally welcome at most roadside attractions, but always check water availability. In Nevada and Arizona, summer temperatures can heat pavement to 140°F, so booties for dogs are essential, even on short stops. The I-80 corridor in Wyoming is notorious for high winds that can affect semi-trucks, so keep both hands on the wheel and expect sudden gusts, especially between Rawlins and Laramie. For real-time road conditions, dial 511 while in Utah or Wyoming, and remember that cell coverage is spotty in the canyons of southern Utah.

To uncover hidden off-route gems like the ghost town of Cisco, Utah, or the Red Canyon Overlook in Wyoming, use tools like how to find the best stops and hidden gems between cities. For example, at exit 164 on I-80, a gravel road leads 5 miles to a petrified forest of 50-foot trees—unmarked and rarely visited.

The route is bookended by two very different deserts. Arizona's Sonoran Desert is lush for a desert—creosote, palo verde, and saguaro cacti dominate, especially around the Tonto National Forest just north of Gilbert. As you climb toward Flagstaff (7,000 ft), the landscape shifts to ponderosa pine forest, and you'll cross the Mogollon Rim, a dramatic escarpment that's the southern edge of the Colorado Plateau. This is your first opportunity for a scenic overlook on I-17 at milepost 298.

Continuing through Utah, you'll pass the Vermilion Cliffs National Monument near Page—famous for the Wave, a Jurassic-era sandstone formation that requires a lottery permit. The region is steeped in Mormon pioneer history, with towns like Kanab and Marysvale named after settlers. Nowhere is this more evident than in the local commerce: roadside stands selling Navajo tacos and homemade fry bread are common on the Navajo Nation, while Utah's polygamy-era past is preserved in the territorial courthouse in Panguitch. Wyoming's high desert, by contrast, is ranch country; Kemmerer itself is called 'the gateway to the Oregon Trail' and its downtown has a fossilized fish quarry that's a designated National Historic Landmark.