Counting Courage in Colorado’s Whitewater: Rafting The Numbers
A half-day sprint through Class III–IV rapids on Colorado’s iconic Arkansas River
The Arkansas River doesn’t whisper here—it counts. One, two, three—each wave stacks, each boulder stands its ground, each horizon line dares you to keep pace. Up near Buena Vista, the canyon tightens and the river narrows into a fast, cold rush, the kind that shakes sleep from your bones and snaps focus into place. Wetsuits squeak. Helmets click. A guide’s voice cuts through the mist: “Forward strong!” You dig in. The current grabs your blade like it’s been waiting for you all year. Welcome to The Numbers, a seven-mile sprint of Class III–IV whitewater that has been challenging paddlers for decades—and still finds new ways to surprise them.
Trail Wisdom
Dress for the water, not the air
Mountain rivers stay cold even under a high sun. Opt for a wetsuit or dry layers in spring and early summer; avoid cotton and go synthetic or wool.
Know the commands before the first wave
Forward, back, hold, and get down are quick calls on Class IV water. A 2-minute shoreside practice helps your crew move as one when it matters.
Secure footwear is non-negotiable
Wear snug, closed-toe river shoes with good traction. Flip-flops and loose sandals become river clutter and a hazard.
Hydrate at altitude
Drink water before and after the run and carry a small bottle if your outfitter allows. High elevation plus hard paddling dehydrates fast.
Local Knowledge
Hidden Gems
- •Barbara Whipple Trail overlook for a quick post-raft leg stretch and Arkansas River views
- •Buena Vista Whitewater Park to watch (or join) surfers and kayakers dial in their moves
Wildlife
Rocky Mountain bighorn sheep, American dipper (water ouzel)
Conservation Note
Stay off fragile riverbanks, use established launches, and clean/dry gear to prevent spreading aquatic invasive species. Pack out everything—nothing escapes the current here.
Early river runners numbered these rapids because they came fast and in sequence; the Arkansas Headwaters Recreation Area was established in 1989 to manage recreation and habitat along this corridor.
Seasonal Guide
spring
Best for: High-flow thrills, Experienced paddlers
Challenges: Cold water temps, Fast current with limited eddies, Unpredictable weather
Snowmelt spikes flows and amplifies the push. Expect big waves, colder water, and a serious, exhilarating pace.
summer
Best for: Consistent Class III–IV, Warmer air temps
Challenges: Afternoon thunderstorms, Stronger sun exposure, Popular time with more trips
June often delivers peak runoff; July–August balance lively water with comfortable air temps and reliable day-to-day conditions.
fall
Best for: Technical lines, Fewer crowds
Challenges: Lower, rockier flows, Cooler mornings
Flows drop and the character shifts to precision runs with exposed rocks and crisp, clear days.
winter
Best for: Quiet canyon scenery
Challenges: Very limited commercial operations, Freezing temperatures and ice
Rafting largely pauses; consider hot springs, scenic drives, or planning for the coming season.
Photographer's Notes
What to Bring
Wetsuit or Dry Top (seasonal)Essential
Cold snowmelt demands thermal protection to keep your core warm and your focus sharp.
Closed-Toe River ShoesEssential
Secure footwear protects feet during put-ins/take-outs and stays on in turbulent water.
Synthetic Base Layer (No Cotton)Essential
Quick-drying layers keep you warm when waves hit and prevent chill between rapids.
Sunglasses with Retainer & Sunscreen
Glare is real on high-altitude water; protect eyes and skin and keep shades secured.
Common Questions
How difficult is The Numbers section?
It’s a concentrated Class III–IV run with quick moves, punchy waves, and limited recovery zones—best for confident, fit paddlers 16+ with prior rafting experience.
How long is the trip and how many miles will we cover?
Plan for about two hours on the water, covering roughly seven miles of continuous whitewater.
What should I wear?
Dress for cold water: synthetic layers, a wetsuit or dry top in spring, and secure closed-toe river shoes. Avoid cotton and bring sunscreen.
Do I need to be able to swim?
Yes. Strong swimming ability and comfort in moving water are important for Class IV sections; you’ll also wear a properly fitted PFD and helmet.
When is the best time to go?
June typically brings peak flows from snowmelt; July–August offer lively, consistent conditions with warmer air; fall runs are more technical with lower flows.
Are guides required?
For most visitors, guided trips are strongly recommended. Local guides know the lines, flow nuances, and safety protocols on this technical stretch.
What to Pack
Synthetic base layer for warmth when soaked; closed-toe river shoes for grip and protection; sunscreen and lip balm at altitude; a dry change of clothes and towel for post-run comfort.
Did You Know
The Arkansas River through Colorado’s Arkansas Headwaters Recreation Area is one of the most commercially rafted rivers in the United States, drawing over 200,000 boating enthusiasts in peak seasons.
Quick Travel Tips
Book morning trips for steadier weather and fewer afternoon storms; hydrate the day before—altitude sneaks up on you; leave jewelry and unsecured items in the car; arrive early to allow time for gear fitting and safety briefings.
Local Flavor
Celebrate the run with a wood-fired pizza and a pint at Eddyline Restaurant & Brewery, grab a farm-to-table bowl at House Rock Kitchen, or sip a single-malt at Deerhammer Distilling. If you’ve got time, soak at Cottonwood Hot Springs to cap off the day.
Logistics Snapshot
Closest major airports: Colorado Springs (COS) ~2.25 hours; Denver (DEN) ~2.75 hours. Meeting spot: 515 US-24, Buena Vista. Drive time from downtown BV: ~5–10 minutes depending on put-in logistics. Cell service: Spotty to none in the canyon; solid in town. Permits: Your outfitter manages AHRA use permits; signed waivers required.
Sustainability Note
This corridor is managed by the Arkansas Headwaters Recreation Area. Practice Leave No Trace, avoid trampling riparian vegetation, and decontaminate gear to prevent invasive species like New Zealand mudsnails.