Utah Whitewater Rafting through Split Mountain Canyon
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
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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:
Meeting Time & Place
Location
Vernal, Utah
Meeting time
9:30 AM
Return
Approximately 3 – 5 PM
Trip Map
Dates & Prices
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Mid-May – Mid-September: Daily
2025 Prices | |
---|---|
Standard Rate | $139 |
Youth Rate | $129 |
Additional Cost:
• Dinosaur National Monument Entrance Fee
*Prices subject to National Park Service review
The Need-to-Know Info
Trip Details
Included in Your Trip Cost
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
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) °F | Air (Night) °F | Water °F | |
---|---|---|---|
May | 74 | 40 | 48-55 |
June | 84 | 48 | 55-60 |
July | 91 | 55 | 60-70 |
August | 89 | 52 | 65-70 |
September | 79 | 43 | 60-65 |
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.
Whitewater
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.
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 Cancellation | Cancellation 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 trip | 50% 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.
Transfers
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.
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.
For You
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