RAFT, CAMP, and EXPLORE
If you’re looking for the perfect place to launch your Upper Arkansas River Valley adventure, look no further than Monumental Expeditions, conveniently located at Chalk Creek Campground. Our prime location offers unbeatable access to some of Colorado’s best whitewater while surrounding you with stunning mountain scenery and endless outdoor opportunities.
A Central Hub for ADVENTURE
Being based at Chalk Creek Campground means we’re in the heart of the valley—just a short drive from Buena Vista, Salida, and the towering Collegiate Peaks. Whether you're staying in a cozy cabin, bringing your RV, or pitching a tent, you’re already at the perfect starting point for your next adventure. Wake up in the crisp mountain air, grab a coffee, and be just steps away from your rafting trip with Monumental Expeditions. No long drives, no extra logistics—just pure, stress-free adventure.
BROWSE RAFT TRIPS
We run trips throughout the Arkansas River headwaters in Colorado, offering something for every adventure level. Whether you're looking for a relaxing float, family-friendly whitewater, or a heart-pounding extreme adventure, we have the perfect trip for you!

Salida Valley
Ages 5 +
Beginner - class I-II
Half & Full Day
The Salida Valley trip offers a fun and accessible way for nearly everyone to enjoy the beauty of the Arkansas River. With small, splashy rapids and plenty of calm stretches. Float through the open Arkansas River Valley, framed by the stunning Swatch Mountain Range of the Rocky Mountains.

Browns Canyon
Ages 7 +
Beginner / Intermediate - class III
Half & Full Day
The crown jewel of the Arkansas River in Colorado and a favorite among adventure seekers. This unforgettable journey combines breathtaking forested canyons with thrilling whitewater rapids, creating memories that will last a lifetime!

The Numbers
Ages 16 +
Advanced - class IV
Half & Full Day
Prepare for an adrenaline-pumping ride on a continuous Class IV section of whitewater nestled in Colorado's majestic Rocky Mountains. This challenging stretch offers a high-energy rafting experience through a rugged, forested canyon.

Bighorn Canyon
Ages 7 +
Beginner / Intermediate - class III
Half & Full Day
Perfect for first-timers and those seeking an intermediate-level adventure, this trip combines the excitement of whitewater with breathtaking scenery and chances to spot local wildlife. It's called Bighorn Sheep Canyon for a good reason.


Multiday/Overnight
Spend more time on the river!
We provide camping gear and meals.
2-5 Day expeditions
Experience
the Monumental Difference!Small, personalized trips on the nations most popular river.
Fun, knowledgeable, and experienced guides.
FREE wetsuit, splash jacket, and bootie use
Lifejacket and helmet included.
You can even bring your dog!* 😉

Convenience Meets Natural Beauty
Rafting with us isn’t just about the river—it’s about the full experience. Imagine wrapping up an exhilarating day on the Arkansas River and walking straight back to your campsite to relax by the fire, swap stories, and enjoy the sound of Chalk Creek rushing by. No need to drive back to town or scramble for a last-minute place to stay. Plus, with hiking, hot springs, and fishing all nearby, you can turn your rafting trip into a full-fledged Colorado getaway.
Book Early - Spots Fill Fast!
We’re a small, family-run rafting company, and that means personal attention, expert guides, and an unforgettable experience on the river. But it also means spots on our trips go quickly—especially with the convenience of Chalk Creek Campground right at our doorstep. The same goes for camping—reservations at this prime spot fill up fast, so don’t wait to plan your trip.
Ready for an unforgettable rafting adventure in one of Colorado’s most scenic locations? Book your trip with Monumental Expeditions today and experience the beauty, convenience, and excitement of rafting right from Chalk Creek Campground!
What people are saying
We are super proud of all of our amazing reviews across may platforms. Here is just a little sample of the praise people have for our little rafting company.
“We have rafted with Monumental for a number of years. This is a smaller, family run outfit that is very friendly and has always served our families rafting needs well.”

“This was our first time rafting and we couldn't have had a better experience! We had sooo much fun! Awesome guide, extremely knowledgeable and explained everything in advance.”

“So much fun! Really awesome guides, and super knowledge of the river!”

“Bought as a Father's Day gift and it did not disappoint. Adam gave us a top notch experience from start to finish. We plan to make this an annual adventure. Would highly recommend!!!”

“We had a phenomenal time with Adam! He is very knowledgeable of the river, a powerhouse on the back of the boat, funny and made us feel confident going through the rapids. Lisa was friendly, helpful, and had some awesome driving skills! We really appreciated the personalized service that you might not get with the bigger companies. Thank you, and see you at the beginning of next season!”

“This is our second trip with Monumental Expeditions and it was just as great as the first time! Adam and Lisa were great at communicating, keeping everyone safe, and making sure we all had a great trip. Would definitely recommend you book with Monumental for Brown's Canyon or any of their other trips!”
