Cottonwood Hot Springs

Chaffee County, Colorado · Near Buena Vista
38.8120°N, 106.2260°W · 8,683 ft
136°F 8,683 ft Roadside Camping nearby (4.8 mi)

Cottonwood Hot Springs emerges at an extraordinary 136 degrees Fahrenheit near Buena Vista, a scorching roadside spring in the San Juan foothills of Colorado that stands 98 degrees above ambient air temperature.

Location

Water courses from bedrock fissures, flowing just 41 meters from the road into a setting of high-elevation terrain where mountain views frame the basin. The mineral-rich flow creates a thermal ecosystem within the snowbound landscape of Chaffee County at 8,683 feet.

Roadside access allows easy viewing from Cottonwood Pass Road. Spring water exceeds 136 degrees Fahrenheit—extremely hot and dangerous to enter. Visit in late spring through early fall when mountain roads are passable and snow has cleared from high passes.

History of Cottonwood Hot Springs

This spring's exceptional heat likely derives from deep circulation along regional fault structures. The Chaffee County geothermal system has supported local interest for generations, with the nearby Collegiate Peaks range lending geological context to the area's thermal activity.

Monthly Climate
16°
Jan
18°
Feb
27°
Mar
34°
Apr
43°
May
57°
Jun
61°
Jul
59°
Aug
53°
Sep
39°
Oct
25°
Nov
15°
Dec
Annual Precip: 17.0 in Annual Snow: 67.1 in
Best Time to Visit
December Air 15°F · Water 136°F · +121° contrast
January Air 16°F · Water 136°F · +120° contrast
February Air 18°F · Water 136°F · +118° contrast
December offers 46°F more contrast than July
Current Conditions
Clear SW 16.9 mph
Thursday 59° Low 25° Mostly Sunny 2% precip
Spring is +77° warmer
Friday 68° Low 36° Sunny 2% precip
Spring is +68° warmer
Saturday 69° Low 38° Sunny 1% precip
Spring is +67° warmer
Sunday 73° Low 38° Sunny 3% precip
Spring is +63° warmer
Monday 80° Low 39° Sunny 1% precip
Spring is +56° warmer
Water Chemistry Sampled 1976-07-20

The water at Cottonwood Hot Springs is slightly alkaline (pH 8.5).

pH 8.5 Slightly Alkaline
pH influences mineral absorption through skin
Calcium 6 mg/L
May support bone density and joint health
Magnesium 0 mg/L
Known for muscle relaxation and stress relief
Sodium 110 mg/L
Supports circulation and skin hydration
Sulfate 100 mg/L
Traditionally used for skin conditions and inflammation
Chloride 30 mg/L
Natural antiseptic with skin health benefits
Iron 20 µg/L
Iron-rich springs may support circulation
Where to Stay

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Nearby Camping
Collegiate Peaks 4.8 mi away

Overview Collegiate Peaks Campground is located 11 miles west of Buena Vista, Colorado, along Middle Cottonwood Creek near the top of Cottonwood Pass. The campground offers well-spaced campsites and scenic views of the surrounding mountains. Visitors enjoy fishing and exploring local trails. A commercial hot springs inn and spa is located about 5 miles east of the campground. "First come, first served" does not necessarily mean that the site will be available when you get there. Someone may...

Reservable Yes
Reserve on Recreation.gov →
High Altitude Advisory 8,683 ft

At 8,683 feet, Cottonwood Hot Springs is in high-altitude territory where the air is noticeably thinner. Soaking in hot water accelerates dehydration and can amplify altitude effects like headache and fatigue. UV radiation is roughly 35% stronger here — wear sunscreen even on overcast days and take breaks from the water to rehydrate.

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Temperature
136°F
Warm Hot Boiling
Water Temp 136°F (58°C)
Avg Air Temp 38°F
Above Ambient +99°F
Great soaking conditions May
Access
Road Access Roadside
Distance to Road 135 ft
Frequently Asked Questions
What is the water temperature at Cottonwood Hot Springs?
Cottonwood Hot Springs has a water temperature of 136°F (58°C). This is considered a hot spring, well above body temperature.
Where is Cottonwood Hot Springs located?
Cottonwood Hot Springs is located in Chaffee County, Colorado at 8,683 feet elevation, near Buena Vista. Coordinates: 38.8120°N, 106.2260°W.
How do I get to Cottonwood Hot Springs?
Cottonwood Hot Springs has Roadside road access (135 ft from the road).
Can I camp near Cottonwood Hot Springs?
Yes, Collegiate Peaks is located nearby (4.8 miles away).
What minerals are in the water at Cottonwood Hot Springs?
Water chemistry analysis shows the presence of pH, Calcium, Magnesium, Sodium, Sulfate, Chloride, Iron. The pH is 8.5 (slightly alkaline).
Is it safe to soak at Cottonwood Hot Springs?
At 136°F, Cottonwood Hot Springs is hot enough to require caution. Enter slowly, limit soaking sessions to 15–20 minutes, and stay hydrated. Access may be on private land or unconfirmed — verify current conditions before visiting. Always tell someone your plans before visiting remote hot springs.
Is Cottonwood Hot Springs crowded?
Cottonwood Hot Springs is accessible from a paved road, making it easy to reach. Weekends and holidays may be busier — consider visiting on a weekday for a quieter experience.
What should I bring to Cottonwood Hot Springs?
Essentials for Cottonwood Hot Springs: swimsuit, towel, water bottle, warm layers for before and after soaking, camping gear, a trash bag to pack out what you pack in. The water is over 110°F — test the temperature before entering and watch for scalding near the source.
Sources: USGS NWIS, Wikipedia