The Upper Colorado River offers thrilling rafting experiences with various put-in and take-out locations. This guide provides detailed information on access points, shuttle services, and trip itineraries for rafting enthusiasts. From the challenging Gore Canyon to the more moderate stretches near Pumphouse Recreation Area, the Upper Colorado River caters to different skill levels and preferences.
Where Are the Main Put-In Locations for Upper Colorado River Rafting?

The primary put-in location for Upper Colorado River rafting is the Confluence Recreation Site near Kremmling. This site is accessible via County Road 1 (Trough Road) off Highway 9. While specific GPS coordinates are not provided, the site is easily reachable by vehicle and offers parking facilities.
Key Features of Confluence Recreation Site:
- Accessible by vehicle
- Parking available
- No specific permits mentioned (check with local authorities)
What Are the Popular Take-Out Locations?

Two popular take-out locations for Upper Colorado River rafting are:
- Pumphouse Recreation Area
- Located along Highway 9
- Accessible by vehicle with parking facilities
-
Popular for the Gore Canyon section
-
Rancho del Rio
- Located 6 miles downstream of Radium
- GPS Coordinates: Latitude: N 39, 51′, 27″, Longitude: W 106, 39′, 04″
- Large boat ramp available
- Fee required for take-out use
How Can Rafters Access the River?
Rafters can access the Upper Colorado River through several key points:
- Pumphouse Recreation Area
- Parking available
- Amenities: Restrooms, picnic areas
-
Immediate river access
-
Radium Recreation Site
- Parking available
- Amenities: Restrooms, picnic areas, access to Warm Springs
-
Immediate river access
-
Rancho del Rio
- Parking available (including RV sites without hook-ups)
- Amenities: Restrooms, picnic areas, general store, liquor store, WiFi, BBQ restaurant, bar
- Immediate river access via large boat ramp
Are There Shuttle Services Available?
Yes, shuttle services are available for Upper Colorado River rafting. Rancho del Rio offers shuttle services from April to November. While specific pricing and schedules are not provided, it’s recommended to contact the Rancho del Rio resort directly for the most up-to-date information.
Rancho del Rio Shuttle Service:
- Operates from April to November
- Supports both commercial outfitters and private boaters
- Contact resort for pricing and schedules
What Are Some Recommended Trip Itineraries?
Here are three popular trip itineraries for Upper Colorado River rafting:
- Gore Canyon to Pumphouse Recreation Area
- Duration: Full day
- Difficulty: Class IV-V whitewater (expert level)
-
Known as the toughest commercially run stretch in Colorado
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Pumphouse Recreation Area to Radium Recreation Site
- Distance: Approximately 4 miles
- Duration: Half-day to full day
- Difficulty: Class II and III rapids
-
Notable rapids: Wake Up, Needle’s Eye, Mary’s Wall
-
Radium to Rancho del Rio
- Distance: Approximately 6 miles
- Duration: Half-day to full day
- Difficulty: Class II and III rapids
- Notable rapids: Red Eye, Yarmony
What Safety Regulations Should Rafters Follow?
Safety is paramount when rafting the Upper Colorado River. Here are essential safety regulations:
- Required Gear:
- Personal flotation devices (PFDs)
- Helmets
-
Appropriate rafting or kayaking equipment
-
Group Size:
- No strict regulations
-
Manage based on skill level and experience of the group
-
Emergency Procedures:
- Carry a first aid kit
- Have an emergency plan
- Know basic river rescue techniques
- Consider carrying a satellite phone (limited cell service)
How Can Rafters Prepare for Different Skill Levels?
The Upper Colorado River offers sections suitable for various skill levels:
Section | Difficulty | Suitable For |
---|---|---|
Gore Canyon | Class IV-V | Expert rafters only |
Pumphouse to Radium | Class II-III | Intermediate rafters |
Radium to Rancho del Rio | Class II-III | Intermediate rafters |
Beginners should consider guided trips or stick to the calmer sections between Pumphouse and Rancho del Rio.
What Additional Amenities Are Available Along the River?
Several recreation areas along the Upper Colorado River offer amenities for rafters:
- Pumphouse Recreation Area: Restrooms, picnic areas
- Radium Recreation Site: Restrooms, picnic areas, access to Warm Springs
- Rancho del Rio: Restrooms, picnic areas, general store, liquor store, WiFi, BBQ restaurant, bar
These amenities can enhance the rafting experience and provide necessary facilities for longer trips.
How Can Rafters Minimize Environmental Impact?
To preserve the beauty of the Upper Colorado River, rafters should follow Leave No Trace principles:
- Plan ahead and prepare
- Travel and camp on durable surfaces
- Dispose of waste properly
- Leave what you find
- Minimize campfire impacts
- Respect wildlife
- Be considerate of other visitors
By adhering to these principles, rafters can help maintain the river’s ecosystem for future generations.
What Are the Best Seasons for Upper Colorado River Rafting?
The rafting season on the Upper Colorado River typically runs from April to November, with peak flows usually occurring in late May to early June due to snowmelt. Here’s a breakdown of the seasons:
- Spring (April-May): High water levels, colder temperatures
- Summer (June-August): Warm temperatures, moderate water levels
- Fall (September-November): Lower water levels, beautiful scenery
Each season offers a unique rafting experience, so choose based on your skill level and preferences.
Remember to always check current river conditions and weather forecasts before embarking on your rafting adventure on the Upper Colorado River.
References:
1. https://riverbent.com/planning-an-upper-colorado-river-trip/
2. https://www.blm.gov/visit/upper-colorado-river-recreation-area
3. https://www.westernriverrats.com/Pumphouse/pumphouse.html