Radium Hot Springs (Colorado)

Grand County, Colorado · Near Kremmling
39.9664°N, 106.5456°W · 6,868 ft
6,868 ft Open Short Walk SFW Camping nearby (1.2 mi)

Radium Hot Springs flows at approximately 104°F on Colorado State Wildlife property, situated roughly halfway between Kremmling and State Bridge as a moderate-temperature thermal source within the Radium State Wildlife Area's Blacktail Unit.

Location

The spring emerges from Colorado Parks and Wildlife-managed land at 6,868 feet elevation. The surrounding landscape features mixed piñon-juniper and ponderosa pine forest characteristic of this Grand County valley environment. The thermal feature sits at a short walk of 435 feet from the nearest access point through open woodland.

A 435-foot walk from parking areas provides easy access during most seasons. Radium Recreation Area lies 1.9 kilometers away and accommodates overnight camping. The wildlife area remains open year-round, though winter conditions on access roads can present navigation challenges requiring suitable vehicle preparation.

History of Radium Hot Springs (Colorado)

This thermal system displays near-neutral pH of 7.7 with moderate total dissolved solids of 240 mg/L, suggesting interaction with crustal fluids at moderate depths. The spring name derives from historical recognition of radium presence, though measured radium levels remain minimal. State wildlife management includes this thermal feature among diverse geothermal resources.

Monthly Climate
21°
Jan
24°
Feb
33°
Mar
38°
Apr
47°
May
62°
Jun
67°
Jul
66°
Aug
59°
Sep
44°
Oct
30°
Nov
20°
Dec
Annual Precip: 18.4 in Annual Snow: 84.5 in
Current Conditions
21°F
Clear N 0.0 mph 79% Good soaking weather
Thursday 62° Low 24° Partly Sunny 7% precip
Friday 72° Low 33° Mostly Sunny
Saturday 73° Low 36° Sunny 9% precip
Sunday 76° Low 34° Sunny 1% precip
Monday 84° Low 36° Sunny 2% precip
Water Chemistry Sampled 2022-10-04

The water at Radium Hot Springs (Colorado) is slightly alkaline (pH 7.7) with 240 mg/L total dissolved solids.

pH 7.7 Slightly Alkaline
pH influences mineral absorption through skin
Higher mineral concentration for therapeutic soaking
Calcium 23 mg/L
May support bone density and joint health
Magnesium 4 mg/L
Known for muscle relaxation and stress relief
Sodium 57 mg/L
Supports circulation and skin hydration
Sulfate 57 mg/L
Traditionally used for skin conditions and inflammation
Chloride 31 mg/L
Natural antiseptic with skin health benefits
Iron 30 µg/L
Iron-rich springs may support circulation
Where to Stay

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Nearby Camping
Radium Recreation Area 1.2 mi away

Overview Managed By Kremmling Field Office  The Radium Recreation Area is part of the Upper Colorado River Special Recreation Management Area (SRMA), providing opportunities for developed camping and river access. With over 100,000 annual visitors the sites facilities include 2 developed boat ramp sites, 9 vault toilets, day use and overnight parking, 16 single campsites and 2 Group Campsites and 3 day use shade structures. There is no potable water provided at this area. The area is used by...

Reservable Yes
Reserve on Recreation.gov →
Mile-High Advisory 6,868 ft

Radium Hot Springs (Colorado) sits at 6,868 feet above sea level, way above the mile-high mark. You may not feel the altitude strongly, but hot water still dehydrates you faster at elevation. UV is about 27% stronger than at sea level, so bring sunscreen and drink more water than you normally would.

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Temperature
No data recorded
Avg Air Temp 43°F
Access
Open
Road Access Short Walk
Distance to Road 436 ft
Land
Ownership STAT
Agency SFW
Designation SCA
Unit Radium State Wildlife Area - Blacktail Unit
Manager SFW
Protection 3 - Protected, subject to extractive use
Frequently Asked Questions
Where is Radium Hot Springs (Colorado) located?
Radium Hot Springs (Colorado) is located in Grand County, Colorado at 6,868 feet elevation, near Kremmling. Coordinates: 39.9664°N, 106.5456°W.
How do I get to Radium Hot Springs (Colorado)?
Radium Hot Springs (Colorado) has Short Walk road access (436 ft from the road).
Is Radium Hot Springs (Colorado) free to visit?
Radium Hot Springs (Colorado) has Open access. It is managed by SFW.
Can I camp near Radium Hot Springs (Colorado)?
Yes, Radium Recreation Area is located nearby (1.2 miles away).
What minerals are in the water at Radium Hot Springs (Colorado)?
Water chemistry analysis shows the presence of pH, Total Dissolved Solids, Calcium, Magnesium, Sodium, Sulfate, Chloride, Iron. The pH is 7.7 (slightly alkaline). Total dissolved solids measure 240 mg/L.
Is it safe to soak at Radium Hot Springs (Colorado)?
Radium Hot Springs (Colorado) is generally safe for soaking at its recorded temperature. Always tell someone your plans before visiting remote hot springs.
Is Radium Hot Springs (Colorado) crowded?
Radium Hot Springs (Colorado) sees varying levels of visitors depending on the season and day of the week.
What should I bring to Radium Hot Springs (Colorado)?
Essentials for Radium Hot Springs (Colorado): swimsuit, towel, water bottle, warm layers for before and after soaking, camping gear, a trash bag to pack out what you pack in.
Sources: USGS NWIS, Wikipedia