Satellite map of Upper Colorado River Scenic Byway

Utah · United States

Upper Colorado River Scenic Byway

UT 128Moab to Dewey Bridge

Distance29.9 mi48 km
Drive time1 hon the road
DifficultyModeratetightness 5 of 10
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The River Road out of Moab follows the Colorado through a narrow red sandstone gorge for 30 miles, past riverside campgrounds, the film country of Professor Valley and the Fisher Towers, to the remains of the Dewey suspension bridge.

SR 128 leaves US 191 at Lions Park on the north edge of Moab and follows the south bank of the Colorado River into a narrow, steep gorge of red sandstone cliffs, known locally as the River Road. Grandstaff Canyon comes in at about 3 miles and the Big Bend campground, picnic area and sandy beach at about 8 miles, with the road squeezed between cliff and river and blind corners without shoulders. The gorge widens at Castle Valley and Professor Valley, where many westerns were filmed and Red Cliffs Lodge, at about 14 miles, houses a film museum, and the Fisher Towers rise at the east end of the valley. The road then winds back up the gorge to cross the river at Dewey, 30 miles from Moab, beside the remains of the 1916 suspension bridge that burned in 2008. In 2026 work on a new riverside path near Grandstaff Canyon has the road down to one lane under traffic control until the end of October.

Scenery

DesertGorge

Best seasons

SpringAutumn

In these collections

In these Grand Tours

Upper Colorado River Scenic Byway on the map29.9 mi · point to point

MoabStart · Utah
Dewey BridgeEnd · Utah

Character

Corners30bends
Tightness5of 10
Max gradient5%≈ 1-in-20
Climb324 mtotal ascent
Summit1,316 mhighest point of the line · 4,318 ft

Corners

busiest around mile 27
71522 mi

Elevation

under 4%4 to 8%over 8%1,209 to 1,316 m
1,2251,2501,2751,300 m 01530 mi

Points of interest4 stops

  • Grandstaff Canyon TrailheadStart of the two-mile trail up Grandstaff Canyon to Morning Glory Natural Bridge, kept open during the 2026 roadworks.
    3.1 mi in
  • Big Bend CampgroundBLM campground and picnic area with a white sand beach on a bend of the river.
    7.7 mi in
  • Cowboy GrillRestaurant at Red Cliffs Lodge, which also houses a film museum, at about mile 14.
    14 mi in
  • Dewey Suspension BridgeRemains of the 1916 bridge, the longest suspension bridge in Utah until a fire destroyed it in April 2008.
    30 mi in

Hazards

  • One lane with traffic control near Grandstaff Canyon until the end of October 2026
  • Blind corners without shoulders
  • Rockfall from the canyon walls
  • Cyclists on the narrow road

Sources

Route traced from OpenStreetMap, with its stats measured from that line. How the roads are mapped

Driving the Upper Colorado River Scenic Byway: quick answers

How long does it take to drive the Upper Colorado River Scenic Byway?
Upper Colorado River Scenic Byway runs 29.9 miles (48 km) and takes about 1 h to drive without stops.
How difficult is the Upper Colorado River Scenic Byway to drive?
We rate it moderate: 30 corners, a maximum gradient of 5%, and a tightness of 5 out of 10.
When is the best time to drive the Upper Colorado River Scenic Byway?
Spring and Autumn are best.

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