Alaska Rafting Trips

The World-Class Wilderness of Alaska's Tatshenshini and Alsek Rivers

We are a small guide owned and operated company offering whitewater rafting in Alaska and Canada. You will enjoy world-class river trips in small groups with unparalleled personal service, a handcrafted quality and attention to detail, organic meals, and one of the most experienced (and friendly) guide staff’s in the world. We offer trips on Alaka’s Tatshenshini-Alsek Rivers – a journey to one of the world’s most epic wilderness areas. It has been called one of the last truly wild river systems on Earth and the trip was named the #1 river trip in the world by National Geographic. We are truly honored to be able to show people this place. Whether you’re a first-timer or an experienced paddler, join us for an Alaska river trip like no other!

Our Tatshenshini River trips are run by Momentum Alaska; A partnership between Pete Wallstrom, the owner of Momentum River Expeditions, and guide Erik Meldrum. Visit our About Us and Why Momentum pages to learn more. Below is more info on our Tatshenshini River trip or you can see all our river trips with our interactive rivers map.


Recent Testimonials

  • "There is no way this trip could have been any better and it will be the standard to which all future river trips will be compared. Your guides are true professionals, incredibly hard working, and just plain great people. The meal/camping situation was astoundingly good, especially given the remoteness and duration of the trip. And of course the scenery was mind-blowing, and the itinerary (loved the layover days) allowed for maximum enjoyment. THANK YOU to everyone at Momentum for showing people like me, who could never visit places like this on my own." - James
  • "Flawless! – Couldn’t imagine a better run trip from A-Z. Loved the guides and the vibe surrounding the entire trip. If I’m ever looking to do another trip I will reach out to Momentum to go with them or even for advice on other companies if they don’t run that area…they are just great people."
  • "Literally nothing could be done better. Your guides are skillful, helpful and delightful. Such good company." - Elisa
  • "This trip was an experience of a lifetime, made only that much better by the passion for river life and exploration shared by the guides and fellow guests. Wish I was still there!" - Eva
  • "You all nailed every detail of the trip, bravo! The guides were all exceptional and the best I've had on any trip!" - Colin
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