Glenwood Springs to Riverton: Epic Rocky Mountain Road Trip Guide

Driving from Glenwood Springs, CO to Riverton, WY (about 285 miles via US-191 and WY-28) means crossing the Continental Divide at Rabbit Ears Pass at 9,426 feet. This route skips I-80 entirely, offering solitude and sweeping views of the Sierra Madre Range.

The highway is a subtle thread through the Great Divide Basin, where the Green River starts its 730-mile journey. Local truckers call this the sagebrush corridor, a transition zone where aspen groves yield to arid badlands.

The route follows US-191 from Glenwood Springs north through Steamboat Springs, then US-40 west to Craig, then WY-13 (via Baggs) to US-287 in Rawlins, finally WY-789/28 into Riverton. Total drive time is roughly 4.5 to 5 hours, but plan for 6 with stops.

Key highway names: US-191 (Colorado Scenic & Historic Byway), US-40 (Wyoming's western corridor), and WY-28 (high desert two-lane). The road is well-paved but narrow in spots with limited shoulders.

• Gas stations are sparse; fill up in Glenwood Springs, Steamboat Springs, Craig, Rawlins, and Baggs (last stop before 65-mile gap).
• Cell service: patchy after Steamboat Springs; download offline maps for WY-13 and WY-28.
• Best months: May–September; winter requires 4WD and chains (Rabbit Ears Pass closes in storms).
• No tolls, but watch for livestock on open range, especially between Baggs and Rawlins.

The landscapes transition from Glenwood's red-rock canyons to the alpine meadows of Rabbit Ears Pass, then sagebrush steppe around Craig, and finally the Wyoming high desert near Rawlins. The Green River cuts through scenic gorges south of La Barge.

Rock Springs offers a detour to White Mountain petroglyphs. Rawlins has the Wyoming Frontier Prison museum. Baggs is a living ghost town with historic saloons.

• Natural attractions: Steamboat Lake State Park, Flaming Gorge National Recreation Area (25 mi detour), and Owl Creek Mountains.
• Commerce: Steamboat's boutique shops, Craig's ranch supply stores, and Riverton's Shoshone-Rosebud cultural center.
• UNESCO: Not directly, but the route parallels the Old Spanish Trail (US National Historic Trail).
• Climatic conditions: Steamboat averages 300 days of sun; Riverton is dry and windy year-round. Summer highs: 80s F; winter lows: below zero.

Road quality is good except for WY-13 (chip seal, potholes). Speed limits range from 55-65 mph. Watch for deer, elk, and mule deer at dawn/dusk. Use pull-offs for photos, not highway shoulders.

For families: Steamboat's Old Town Hot Springs, Craig's Museum of Northwest Colorado, and Riverton's Children's Museum of Wyoming. Pet-friendly: Rest at Jack Creek Campground (off WY-13) where dogs can run off-leash.

• Top rest zones: Steamboat Lake (mile 90), Baggs rest area (mile 170), Rawlins City Park (mile 280).
• Fatigue management: Alternating drivers is ideal; take a 15-min break every 2 hours. Podcasts on Western history help keep alert.
• Hidden off-route spots: Teal Lake Trail (near Steamboat), Chalk Creek Falls (near Rawlins), and the ghost town of Miners Delight (off WY-28).
• For deeper stop strategies, read how to find the best stops and hidden gems between cities.