Browse Trips
We offer trips all along the Arkansas River headwaters in Colorado.
Browns Canyon
Ages 7 +
Beginner / Intermediate - class III
Half & Full Day
Bighorn Canyon
Ages 7 +
Beginner / Intermediate - class III
Half & Full Day
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!* 😉
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 small family run 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!”
