
Colorado and Utah ยท Dinosaur National Monument
Yampa River rafting trips
The only free flowing tributary left in the Colorado River system, with a season that ends when the spring runoff does. Every authorized outfitter we could reach, side by side.
4 to 5 days / 3 to 4 nightsQuick answer
Guided Yampa River rafting trips run 4 days, 3 nights to 5 days, 4 nights, and only from May to early July, while spring runoff lasts. We list 7 Park Service authorized outfitters. Booking a seat skips the Dinosaur lottery. Listed prices start at $1,279 per person (checked September 2026).
The route
Deerlodge Park to Split Mountain
The Yampa runs 46 miles through Yampa Canyon to Echo Park, where it joins the Green. Trips finish on the Green through Whirlpool Canyon and Split Mountain.
- Mile 0Deerlodge ParkLaunch, Colorado
- Mile 9.5Tepee RapidClass II+
- Mile 21.9Big JoeClass II+
- Mile 41.6Warm SpringsClass IV
- Mile 46Echo ParkJoins the Green
- Mile 71Split MountainTake out, Utah
- Day 1
- Day 2
- Day 3
- Day 4
- Day 5
Rapid miles and classes from American Whitewater; Echo Park from Park Service camp distances; 71 miles overall from the Park Service. Shown for a 5 day, 4 night trip. Camps are assigned by the Park Service before launch.
Compare outfitters
Every Yampa River outfitter, side by side
Dinosaur National Monument publishes its list of authorized river outfitters. This table covers the ones running Yampa trips, with details from each outfitter's own site, listed alphabetically.
| Outfitter | Trip lengths | Boats | Season | Min age | From, per adult | Book |
|---|---|---|---|---|---|---|
| Adrift Dinosaur | 5 days, 4 nights; specialty and charter trips only | Oar, paddle, inflatable kayak | May and June | 7 (or 50 pounds); 16 on specialty trips | $1,499Women's trip, June 2026; 2027 is charter only. Checked Sep 2026 | See dates with Adrift |
| ARTA | 5 days, 4 nights | Oar, paddle, inflatable kayak | May to early July | 7 | $1,7495 day, 4 night trip; year not clear. Checked Sep 2026 | See dates with ARTA |
| Dinosaur River Expeditions | 4 days, 3 nights to 5 days, 4 nights | Oar | Mid May to early July | 8 (7 at some water levels) | $1,2794 day, 3 night trip; 2026 rate held for 2027; 8 guest minimum. Checked Sep 2026 | See dates with Dinosaur River Exp. |
| Holiday River Expeditions | 4 days, 3 nights to 5 days, 4 nights | Oar; paddle on request; inflatable kayak | May to June | 8 | $1,4354 day, 3 night trip, 2026, plus a $12 campsite fee. Checked Sep 2026 | See dates with Holiday |
| Mild to Wild Rafting | 4 days, 3 nights to 5 days, 4 nights | Oar; inflatable kayak at suitable water levels | May to July | 7 at low water; 12 at high water | $1,3994 day, 3 night trip; year not shown; about 9% fees extra. Checked Sep 2026 | See dates with Mild to Wild |
| OARS | 4 days, 3 nights to 5 days, 4 nights | Oar, paddle, inflatable kayak, paddle board | May to late June | 7 (10 to 12 at high water) | $1,5994 day, 3 night trip, May 2027; 5 day $1,899. Checked Sep 2026 | See dates with OARS |
| Sheri Griffith River Expeditions | 4 days, 3 nights to 5 days, 4 nights | Oar, paddle, inflatable kayak | May to June | 10 | $1,8964 day, 3 night trip, 2026, government fees included. Checked Sep 2026 | See dates with Sheri Griffith |
"Not listed" means we could not find it on the outfitter's site in September 2026. Where a site gives days only, nights are days minus one. Prices are the lowest adult rate we found. Confirm when booking.
Also on the Park Service list but not shown: Eagle Outdoor Sports, whose website sent us to an unrelated site in September 2026. Missing an outfitter? Tell us.
The no lottery way in
Guided trip or private permit?
From the second Monday of May to the second Saturday of July, private Yampa trips need a permit from Dinosaur National Monument's high use lottery. That window covers nearly the whole runnable season. Outfitters are authorized separately, so a guided trip skips the lottery.
No lottery
Book a guided trip
- How you get a spot
- Pick a date with one of the outfitters above and book it.
- Trip length
- 4 days, 3 nights to 5 days, 4 nights on the trips we checked.
- Where you meet
- Most outfitters meet in Vernal, Utah, the night before or that morning.
- Boats and food
- The outfitter brings the boats, guides, meals and camp.
Private permit
Enter the Dinosaur lottery
- When to apply
- December 1 to January 31, with a $15 application fee.
- Results
- Emailed by mid February.
- Leftovers
- Unclaimed high use trips open March 6 at 8 am MST.
- Limits
- Up to 25 people, one high use trip a year, and a $185 permit fee.
Sources: Dinosaur boating and rafting page, the Park Service river permit FAQ and the Park Service 2025 boating guide.
On the river
What a day on a Yampa River rafting trip looks like
The river moves fast on spring runoff. The Park Service assigns camps, so every night has a spot waiting.
- Morning
Breakfast in camp, then pack up. The Park Service asks groups to leave camp by noon.
- Midday
Rapids and fast water through Yampa Canyon, with lunch on a beach.
- Afternoon
A side hike, then on to the night's assigned camp.
- Evening
Dinner cooked by the guides, the night in the canyon.
What outfitters list as included
- Guides, boats and life jackets
- Meals on the river
- Camp gear
- Transportation to the launch
Holiday adds a $12 campsite fee and Mild to Wild about 9% in fees; Sheri Griffith's price includes government fees. Check each outfitter's list.
Worth checking before you book
- Campsite and access fees
- Sleeping bags
- Travel to Vernal
- Guide tips
More on camp life, meals and the toilet in river camping, and on tips in tipping your guides.
When to go
The Yampa River rafting season
The Park Service says high flow from spring runoff generally lasts only a few weeks in late May and June, and the river is too low for rafts around 1,000 cfs, which in most years comes in mid July. Outfitters schedule trips from May to early July.
Several outfitters raise minimum ages at high water. Book early; with trips only from May to early July, dates are limited. See when to go rafting for how seasons compare.
Who it suits
Which Yampa trip fits you
Whitewater seekers
Late May and June bring the highest water, when OARS and Mild to Wild raise minimum ages. See whitewater camping trips and the whitewater classes guide.
Families
ARTA takes kids from 7, and later dates bring lower minimums at Mild to Wild and OARS. See family rafting trips.
Planners
The short season means booking early. Every Yampa trip also finishes on the Green below Echo Park. See week long rafting trips for longer options.
Questions
Yampa River rafting trip questions
How much does a Yampa River rafting trip cost?
On the outfitters' own sites, checked in September 2026, the lowest listed rate is $1,279 per person for a 4 day, 3 night trip with Dinosaur River Expeditions. Most 5 day, 4 night trips list from $1,429 to $2,004. Every price in the table is dated. Confirm when booking.
Why is the Yampa season so short?
The Park Service calls the Yampa the only remaining free flowing tributary in the Colorado River system. With no dam upstream, high flow from spring runoff generally lasts only a few weeks in late May and June. The Park Service says the river gets too low for rafts around 1,000 cfs, which in most years happens in mid July.
How long is a Yampa River trip?
The Park Service's standard high use trip is 5 days and 4 nights. Outfitters run 4 days, 3 nights to 5 days, 4 nights. The float runs 71 miles from Deerlodge Park to Split Mountain, according to the Park Service.
Do I need a permit to raft the Yampa?
Not on a guided trip. Private trips from the second Monday of May to the second Saturday of July need a permit from the Dinosaur lottery. Outfitters are authorized by the Park Service, so you book a seat directly.
How hard is Warm Springs Rapid?
American Whitewater rates Warm Springs Class IV, and the Park Service says some Yampa rapids reach Class IV depending on water level. Most other rapids on the run are Class II to III.
What is the minimum age?
ARTA, Mild to Wild and OARS list 7, with Mild to Wild and OARS raising it at high water. Holiday and Dinosaur River Expeditions list 8, and Sheri Griffith lists 10.
Where do Yampa trips start and end?
Trips launch at Deerlodge Park in Colorado and end at the Split Mountain boat ramp in Utah, after the Yampa joins the Green at Echo Park. Most outfitters meet in Vernal, Utah.
Yampa or Gates of Lodore?
Both end at Split Mountain and share the same lottery. The Yampa's standard trip is a day longer, its season is shorter, and it runs only in spring and early summer. Lodore runs into September. See our Gates of Lodore page to compare.
When should I book a Yampa trip?
Early. Outfitters run only from May to early July, so dates are limited. OARS lists 2027 Yampa dates from May 10 to June 25.
How many people can go on a private trip?
Up to 25, according to the Park Service, and each person can hold only one high use trip a year on the Green or the Yampa.
Free download
Get the Overnight River Trip Planner
A packing list for river and camp, plus the lottery dates for the season in one calendar.
Keep planning
Related rivers and trips
- Gates of LodoreThe Green, which the Yampa joins
- Colorado overnight rafting tripsEvery Colorado river in one place
- Utah overnight rafting tripsEvery Utah river in one place
- DoloresAnother Colorado canyon trip, in wet years
- River permit lotteriesEvery lottery window in one calendar
- Whitewater camping tripsBig rapids with nights out
- Week long rafting tripsFive nights or more on the river
- River campingTents, meals and the toilet
- What to packRiver and camp clothes
- Outfitter directoryEvery outfitter we list, by name
- Rafting trip costHow prices compare across rivers
- Plan your tripAll planning guides
Ready to book
Pick your Yampa outfitter
Compare trip lengths, boats and minimum ages, then check dates directly with the outfitter.