Aspen to Riverton: Epic Rockies Road Trip Guide

The drive from Aspen, Colorado to Riverton, Wyoming covers approximately 380 miles and takes 6.5 to 8 hours without stops. The route climbs over the Continental Divide at Independence Pass (12,095 ft), then descends through the Colorado River valley before crossing into Wyoming's high desert. A little-known fact: the portion along US-191 through Wyoming follows the historic Oregon Trail, with ruts still visible near South Pass.

This guide answers key questions: how long to drive Aspen, CO to Riverton, WY; is it worth driving Aspen, CO to Riverton, WY; and what are the best stops Aspen, CO to Riverton, WY. We'll also show you how to find the best stops and hidden gems between cities.

The route is a mix of scenic two-lane highways and interstate. From Aspen, take CO-82 west to Independence Pass. The pass is closed in winter (typically November to May) and requires checking conditions. After Glenwood Springs, merge onto I-70 west, then US-13 north to Craig. From Craig, take US-40 west to WY-789 north through Baggs and Rawlins. Finally, take US-287 north to Lander, then US-26 east to Riverton.

• Independence Pass: narrow, winding, no guardrails. Drive during daylight and allow extra time.
• I-70 segment: heavy traffic near Glenwood Springs, but smooth pavement.
• WY-789: remote, few services. Fuel up in Rawlins or Baggs.
• US-287 near Lander: sweeping views of the Wind River Range, well-maintained.

Fuel economy: Expect mileage drop on climbs. In an average SUV, you'll need to refuel twice. Stations are available in Aspen, Glenwood Springs, Rifle, Craig, Baggs, Rawlins, and Lander. Gas prices can be 10-15% higher in Aspen. Carrying an extra gallon is recommended for remote stretches.

Road conditions: The Colorado section is maintained by CDOT and is generally good except after storms. Wyoming roads are maintained by WYDOT but can be icy or windy. Check road reports on COtrip.org and WYDOT's app.

Safety: The most dangerous stretch is Independence Pass: steep, narrow, and no guardrails. Avoid after dark. In Wyoming, watch for wildlife at dawn/dusk, especially deer and antelope. Also, high winds on I-80 and US-287 can affect handling.

• Families: kid-friendly stops include Glenwood Springs Adventure Park (roller coasters, hot springs) and the Wyoming Dinosaur Center in Thermopolis (2 hours north of Riverton).
• Pet-friendly: Most state parks and national forests allow dogs on leash. Rest stops are plentiful along I-70 but fewer in Wyoming. Hotels in Aspen, Glenwood Springs, and Lander are pet-friendly.
• Fatigue management: Plan to break every 2 hours. Ideal rest stops: the rest area at Lookout Mountain (mile marker 171 on I-70), the Sinclair Rest Area (WY-789), and the Wind River Rest Area (US-287). Consider staying overnight in Craig or Rawlins.

Hidden off-route spots: For a worthwhile detour, visit Hanging Lake (requires reservation, near Glenwood Springs) or the White River National Forest for hiking. In Wyoming, the Red Desert near Rawlins has wild horses and rock formations. The Boar's Tusk is a volcanic remnant accessible by high-clearance vehicle.

The landscape transitions from alpine tundra to river valleys, then to high desert plains. Independence Pass offers panoramic views of the Sawatch Range. The Colorado River runs alongside I-70 through Glenwood Canyon. In Wyoming, the landscape is wide open with sagebrush and mesas, leading to the Wind River Range near Lander.

• Independence Pass: stop at the summit for photo ops and short hikes.
• Glenwood Canyon: scenic pullouts for river views.
• Dinosaur Diamond Prehistoric Highway: near Craig, you can visit visitor centers in Dinosaur, CO.
• South Pass City Historic Site (near Lander): a ghost town from the Gold Rush era on the Oregon Trail.

UNESCO World Heritage Sites: While none are directly on the route, Mesa Verde National Park (4 hours south) is a UNESCO site. However, the route passes near Fossil Butte National Monument (Wyoming's fossil fish) and the Great Sand Dunes (Colorado). For culture, stop in Lander for local Wyoming art galleries and the Museum of the American West.

Local commerce: In Riverton, the Wind River Indian Reservation offers Native American crafts and cultural experiences. Aspen's boutique shopping is world-renowned, but prices are high. For a more authentic experience, browse the shops in Glenwood Springs or Lander.