Las Vegas to Denver Road Trip: Ultimate Travel Guide

The drive from Las Vegas, NV to Denver, CO spans approximately 750 miles along I-15 and I-70, passing through the stark beauty of the Mojave Desert, the red rock canyons of Utah, and the high alpine passes of the Rockies. A little-known fact: the route crosses the Continental Divide twice—once at Soldier Summit in Utah and again at the Eisenhower Tunnel in Colorado. This 12-hour journey offers a microcosm of the American West, from neon-lit casinos to mountain peaks.

• Total distance: ~750 miles (1,207 km)
• Estimated driving time: 11-13 hours without stops
• Best stops: St. George, UT; Moab, UT; Glenwood Springs, CO

For tips on finding hidden gems along the way, check this guide: how to find the best stops and hidden gems between cities.

I-15 from Las Vegas to just north of St. George is well-maintained, with multiple gas stations and rest stops. Near the Utah border, traffic thins. After Provo, take US-6 east to I-70. I-70 through Utah and Colorado features steep grades and tunnels. Fuel costs vary: cheaper in Nevada, pricier in remote Utah and mountain Colorado. Plan for gas every 150-200 miles.

• Route: I-15 N -> I-70 E (via US-6 in Utah)
• Toll roads: None on main route
• Altitude gain: from 2,000 ft in Las Vegas to 11,000 ft at Eisenhower Tunnel

Cell service is spotty in central Utah and parts of Colorado. Download offline maps. Winter travel requires snow chains or 4WD.

From the red cliffs of Snow Canyon State Park near St. George to the surreal arches of Moab, this route is a geological wonder. Capitol Reef National Park offers a less crowded alternative. In Colorado, Glenwood Canyon provides dramatic cliffside driving. Local commerce thrives on tourism: Navajo artisans near Moab, fruit stands in Palisade, and hot springs in Glenwood Springs.

• UNESCO sites: None directly on route, but nearby Mesa Verde National Park (UNESCO) can be detoured
• Climatic variation: desert heat in NV/UT, alpine chill in CO
• Culinary stops: try Utah scones in Beaver, Colorado lamb in Glenwood Springs

Hidden off-route spot: Goblin Valley State Park in Utah, just 30 miles off I-70. A landscape of hoodoos and bizarre rock formations.

I-70 has long stretches with no services, especially between Salina, UT and Grand Junction, CO. Keep a full tank. Rest zones are available every 50-60 miles. For families, stops like the Living Planet Aquarium in Draper, UT or the Dinosaur Journey Museum in Fruita, CO are ideal. Pet-friendly hotels are common in Moab and Glenwood Springs.

Fatigue management: break every 2 hours. Take a leg-stretching walk at rest areas. The drive through the Rocky Mountains can be visually stunning but mentally taxing due to winding roads.

• Road quality: Good paved roads; watch for wildlife near dusk
• Family stop: Arches National Park (easy hikes)
• Pet-friendly: Many Motel 6 and La Quinta locations along route