Float 5.5 miles of the Upper Colorado from Pumphouse Campgrounds, navigating mostly class I–II rapids and one energetic class III. This 3–3.5 hour half-day trip blends Rocky Mountain canyon scenery, wildlife sightings, and accessible whitewater for ages 3 and up.
More ways to explore the area's outdoor wonders
The current finds you immediately—cool, clear, and opinionated—pushing a 5.5-mile corridor of river that has been carving the Rockies for millennia. Launching from Pumphouse Campgrounds, the half-day float threads through canyon walls, wide gravel bars and short drops: mostly class I–II water with one memorable class III rapid that wakes even seasoned paddlers.
Difficulty
moderate
Duration
3–3.5 hours
Fitness Level
Basic mobility and the ability to climb in/out of a raft; suitable for most fitness levels including families with children aged 3+.
Wildlife
History
The Upper Colorado is part of the Colorado River headwaters that have supported Indigenous peoples, then miners and ranchers; the adjacent valleys remain working landscapes.
Conservation
River flow and habitat are affected by water withdrawals and recreation—pack out trash, stay on designated access points, and respect private riverfront property.
Reserve your spot on the Upper Colorado River Half-Day Float Trip near Kremmling today and enjoy a trusted, highly rated experience designed to help you make the most of your adventure.
Arrive Early for Check-In
Plan to be at the put-in 15–30 minutes early to sign waivers, get fitted for PFDs and receive a safety briefing.
Secure Electronics
Use a small dry bag or waterproof case; phone cameras are fine but rarely replace a quick-dry backup.
Footwear and Grip
Wear closed-toe water shoes with good tread—gravel bars are slippery and river entries can be uneven.
Sun and Hydration
High-elevation sun is intense; bring a hat, sunscreen, and at least 1 liter of water per person.
Closed-toe water shoes
Protects feet on rocky entries and provides traction on slick river bars.
summer
Quick-dry layers and light fleece
Keeps you comfortable against spray and cool canyon breezes in shoulder seasons.
spring
Dry bag or waterproof phone case
Protects electronics and small valuables from splashes and brief submersion.
Sunscreen and wide-brim hat
High-elevation sun exposure can be strong even on cool days.
summer