Utah Whitewater Rafting through Split Mountain Canyon

Location Utah Adventure Level Easier to Moderate Minimum age 6 (11 during high water) River Rating Class III From $129
Book Now Call toll-free 1 (800) 346-6277

The best 1-day whitewater rafting trip in Utah!

Don’t miss this under-the-radar Dinosaur National Monument adventure that’s fit for the whole family. Our daily Green River rafting trips through Split Mountain Canyon cover approximately nine river miles with four Class II-III rapids: Moonshine, S.O.B., Schoolboy, and Inglesby. And while there are plenty of splashy moments to add a little spice, this 1-day rafting trip is about so much more than the whitewater. The colorful Morgan Formation that greets paddlers at the put-in is just a tiny taste of the spectacular views you’ll encounter on this idyllic Utah rafting trip that boasts 2,000-foot cliffs, intriguing rock formations, and fascinating human history. It’s everything you’re looking for in a rafting day trip and more!

Trip Highlights
  • A super-scenic Utah whitewater rafting day trip on the Green River
  • View Native American petroglyphs 
  • Lively Class III rapids and plenty of splashy riffles
  • Enjoy a delicious riverside picnic lunch and refreshments
  • Split Mountain rafting in Dinosaur National Monument is a fun family adventure

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What to Expect

Itinerary & Map

Itinerary at a Glance

We pride ourselves in running a relaxed and flexible schedule. Every Split Mountain whitewater rafting trip is different depending upon the group, other trips on the water, camp locations, and sometimes the weather. The following is a sample of what your trip might be like:

  • Upon everyone’s arrival at the OARS Warehouse, we’ll take a short shuttle ride to our put-in at Rainbow Park, stopping along the way to view some Native American petroglyphs. At the put-in, your guides will give a thorough safety talk and orientation. Then we’ll hit the river for a day of fun!
  • We’ll splash through three sizable rapids (Moonshine, S.O.B., and Schoolboy) before stopping at a beach for a satisfying guide-prepared lunch. Here you can swim, maybe play a quick game of Frisbee, or just relax and soak in the summer sun. After lunch, we’ll continue the remaining few miles of Split Mountain Canyon and finish our day navigating Inglesby Rapid.
  • Our day of Green River rafting ends at the Split Mountain Boat Ramp, where we’ll board our shuttle for the short bus ride back to Vernal. We typically arrive back at our warehouse by late afternoon/early evening.

Meeting Time & Place


Vernal, Utah

Meeting time

9:30 AM


Approximately 3 – 5 PM

Trip Map

A kid exhinits joy and excitement as they sit on a paddle raft going through white water.

Dates & Prices

Mid-May Mid-September: Daily

2024 Prices
Standard Rate$139
Youth Rate$129

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See below for more ways to save!

Additional Cost:

• Dinosaur National Monument Entrance Fee

*Prices subject to National Park Service review

Ways to Save

To book with one of our special offers, call 1-800-346-6277 or contact us today.

Teachers Raft for Free!

Teachers raft for free on 1/2- and 1-day trips all season long with one or more full-paying guests.

The Need-to-Know Info

Trip Details

Included in Your Trip Cost

  • Skilled professional guide services
  • Delicious picnic lunch and snacks
  • High-quality inflatable rafts and related river equipment including paddle, helmet, personal flotation device and wetsuits, and splash tops (provided on early and late season trips, cold weather trips, and by advance request)
  • Transportation from Vernal to the river and back

Not Included in Your Trip Cost

  • Transportation to and from Vernal
  • Pre- and post-trip accommodations
  • Insurance of any kind, including a travel protection plan
  • Dinosaur National Monument Entrance Fee
  • Gratuities
A group of people in a raft holding paddles take a moment to admire the view downstream on the Green River during a section of flat water.

The number and variety of boats on an OARS trip will vary based on water levels, the number of participants, and other factors we take into account when planning your adventure. We don’t assign boats, nor can we guarantee exactly which crafts we bring, but trust us to provide you with the best possible mix for you and others on your trip. 

If you are a group of 1 to 5 people you should expect to have other rafters in the same boat with you. Groups of 6 to 8 will most likely be in one raft, but there may be instances where we have to split into one raft plus a group of 2 or 3 that would share a raft with another small group.

Learn more about the OARS Fleet and the boats that may be a part of your experience: Paddle raft, paddle raft w/oar assist.

Come lunchtime, we’ll pull over to a beach for a delicious picnic. Your guides might prepare a fresh chicken Caesar salad wrap or tasty taco salad for roll-your-own burritos. Lunch is always accompanied by fruit, cookies, cold water, and lemonade.

Please let us know if you have any dietary needs that we’ll need to consider in planning your trip. More info about Meals & Dietary Restrictions can be found on our Trip Resources page.

Average Air & Water Temperatures

Air (Day) °FAir (Night) °FWater °F

Water Levels & Temperature

The Green River’s headwaters lie in the Wind River Range of Wyoming, and its stream is repeatedly blocked and diverted, most significantly by the Flaming Gorge Reservoir, not far upstream from Dinosaur National Monument. Thus, its flow is determined by reservoir releases. 

The Green will spike in the spring and early summer as the controlling agency at Flaming Gorge Dam releases water to make room for inflow. Peak releases from Flaming Gorge on the Green usually occur between mid-May and mid-June but can vary widely from early May into July. High-water trips equate to a more intense whitewater experience and a high level of physical fitness is recommended. Water temperatures are coldest during the high water period, and rain gear and warm synthetic clothing will be required.


This section of the Green River offers thrilling Class III rapids, interspersed with calm sections that inspire swimming, watching for wildlife, and gazing at the canyon scenery. Despite these slower stretches, the whitewater is consistent on the Green—you’ll challenge major rapids, plus lots of smaller waves and riffles. The Green River through Split Mountain Canyon is ideal for first-time rafters and children as young as 6 (11 during high water), but not short on excitement for more seasoned boaters.

Before booking your trip with OARS, there are a few important considerations we’d like you to know about.

  • Physical Requirements: Your outdoor adventure will be an active participatory trip. Please inform us of any physical limitations you may have as soon as possible. If you exceed 260 pounds, please give us a call. Make sure you are exercising frequently in the months leading up to your trip and can meet our Essential Eligibility Criteria.

  • Whitewater Orientation: To increase your safety, we expect everyone to watch our Whitewater Orientation video before joining us.
  • Trip Forms: Each participant will need to complete the required trip forms within two weeks of making a booking. Refer to your confirmation email for the link to the online forms. If you prefer to fill out paper forms, please let us know right away. If you are reserving within 30 days of departure, your forms must be completed immediately to ensure we can properly plan for your trip.

Reservations and Payments

Full payment is required at the time of booking.

Payments can be made by check, money order, eCheck, wire transfer, Visa, MasterCard, American Express, or Discover. Prices are in US Dollars, and all payments must be made in US Dollars. Payment of the deposit establishes your acceptance of our complete Terms and Conditions. Individual departures and trip capacity are strictly limited by the managing agency. Your payment is fully refundable for 48 hours, less a 3% processing fee, after making a reservation when you reserve a trip 7 days or more prior to departure.

Cancellations and Refunds

Canceling your trip after your deposit is processed will incur cancellation fees because OARS has absorbed costs on your behalf and will turn others away who would like to book the spaces we’re holding for you. If you must cancel your reservation after the rescission period described above, your cancellation fee will be determined according to the schedule below.

We regret that we cannot make exceptions to the cancellation policy for any reason, including foul weather, poor air quality, wildfire activity, acts of terrorism, civil unrest or personal emergencies. For these reasons, we strongly urge you to consider purchasing a travel protection plan.

Date of CancellationCancellation Fee
30 or more days before your trip$30/person
29 – 7 days before your trip$50/person. The remainder of your trip payment can be transferred to another trip within the same year (or to a credit account for the following year). No refund.
6 days or less before your trip50% of the trip cost can be credited to another trip (within the same year). No refund.
Late arrivals or “no-shows”No refund or credit

Please note that different deposit/cancellation policies may apply for charter groups. Refer to the group organizer’s confirmation email for details.

Canceled Trips

OARS reserves the right to cancel any trip due to insufficient registration or other factors that make the trip impractical to operate. In such instances, we will inform you at least 7 days prior to departure. Do not make non-refundable travel arrangements until you have verified with OARS that your trip is confirmed.

If a trip must be canceled or postponed due to force majeure (factors outside the control of OARS), OARS will provide full credit for payments made toward future travel, or a refund less a $30/person service fee and any non-refundable payments made on your behalf to 3rd-party suppliers. OARS will make good faith efforts to recover deposits made on your behalf to 3rd-party suppliers; however, we cannot guarantee recovery of any or all of the advance payments made. OARS is not responsible for expenses incurred by participants in preparation for a canceled trip.


If you need to move your reservation to a different trip during the same year, or to a credit account for the following year, there is a $15/person fee up until 30 days prior to departure for a one-time transfer of your payment. If we are 29-7 days prior to your trip departure, there is a $50/person fee to transfer to another trip, within the same year or to a credit account for the following year. If we are 6 days or less prior to departure, 50% of your trip cost can be credited to another trip within the same year only.

National Park Service Authorized Concessioner

O.A.R.S. Canyonlands, Inc. is an authorized concessioner of Dinosaur National Monument.

Ancestral Lands Acknowledgement

We respect and recognize that many of the river canyons on state and federal lands where we operate are the ancestral homes of indigenous communities. Where we operate on the Green River between Rainbow Park and Split Mountain Campground, we acknowledge the territories of the Ute.

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