File:The Grave of George Colegate.jpg — cc by-sa 4.0
Colgate Warm Springs registers pH 9.5, placing it among the most alkaline thermal features in Idaho. The water emerges at 106 degrees Fahrenheit in Clearwater National Forest at 3,080 feet elevation near Superior, with strikingly low mineral content despite its strong alkalinity.
Reaching Colgate requires a short walk of about 715 feet through dense mixed-conifer forest in a drainage that receives nearly 49 inches of rain and over 17 feet of snow annually. The forest canopy here is thick, keeping the spring area shaded and cool even in summer. The water itself is remarkably clear and soft, with almost no calcium or magnesium. Moss and algae thrive in the warm outflow channels. The Lochsa River corridor and its wild, steep-walled canyon dominate the broader landscape.
History of Colgate Warm Springs
The extreme alkalinity and near-absence of calcium and magnesium in Colgate's water indicate deep circulation through Idaho Batholith granitic rock, where sodium replaces calcium through ion exchange. At 57 mg/L sodium and just 2.2 mg/L chloride, the water has had prolonged contact with silicate minerals but minimal exposure to evaporite deposits. This chemistry is characteristic of the northern Idaho batholith thermal system.
Whitehouse Campground along the Lochsa River sits about 14 miles away on US Highway 12, the Northwest Passage Scenic Byway. The campground is first-come, first-served with 13 sites. Heavy snowfall makes this area effectively inaccessible from late fall through spring. Summer visitors should be prepared for mosquitoes in the wet forest environment. The spring's 106-degree temperature is comfortable for soaking where flow pools naturally.
Is Colgate Warm Springs worth visiting?
Best for
- Hot spring soaking
- Overnight camping trips
Colgate Warm Springs is well suited for hot spring soaking and overnight camping trips.
Annual Precip: 48.8 in
Annual Snow: 209.1 in
December
Air 27°F · Water 106°F · +79° contrast
January
Air 29°F · Water 106°F · +77° contrast
February
Air 30°F · Water 106°F · +76° contrast
December offers 44°F more contrast than August
Recent Temperature
113.0°F
(45.0°C)
Measured Jul 14, 1982
The water at Colgate Warm Springs is alkaline (pH 9.5).
pH influences mineral absorption through skin
May support bone density and joint health
Known for muscle relaxation and stress relief
Supports circulation and skin hydration
Traditionally used for skin conditions and inflammation
Natural antiseptic with skin health benefits
Approximately an hour west of Lolo, MT at mile post 158.5 of the famous Northwest Passage Scenic Byway and All American Road (US Highway 12), directly across from the Lochsa Wild and Scenic River, rests the Whitehouse Campground. This riverside campground has 13 sites and due to its close proximity to the Lewis and Clark Trail, has much more to offer than just camping. It's an ideal location for fishing, hiking, back packing, nature viewing or as a place to stop and have a picnic while enjo...
Reserve on Recreation.gov →
Swimsuit & towel
Water bottle
Stay hydrated, especially in hot water
Camping gear
Nearby camping at Whitehouse Campground
Trash bag
Pack out what you pack in
0 miles from Superior, ID
USGS Quad: BEAR MOUNTAIN 7.5 · PP 492: 2.0 · NOAA: 1.0 · AMS Map: HAMILTON
What is the water temperature at Colgate Warm Springs?
Colgate Warm Springs has a water temperature of 106°F (41°C). This is considered a hot spring, well above body temperature.
Where is Colgate Warm Springs located?
Colgate Warm Springs is located in Mineral County, Idaho at 3,080 feet elevation, near Superior. Coordinates: 46.4660°N, 114.9390°W.
How do I get to Colgate Warm Springs?
Colgate Warm Springs has Short Walk road access (0.1 mi from the road).
Is Colgate Warm Springs free to visit?
Colgate Warm Springs has Open access. It is managed by US Forest Service.
Can I camp near Colgate Warm Springs?
Yes, Whitehouse Campground is located nearby (8.5 miles away).
What minerals are in the water at Colgate Warm Springs?
Water chemistry analysis shows the presence of pH, Calcium, Magnesium, Sodium, Sulfate, Chloride. The pH is 9.5 (alkaline).
Is it safe to soak at Colgate Warm Springs?
Colgate Warm Springs is generally safe for soaking at its recorded temperature. Always tell someone your plans before visiting remote hot springs.
Is Colgate Warm Springs crowded?
Colgate Warm Springs sees varying levels of visitors depending on the season and day of the week.
What should I bring to Colgate Warm Springs?
Essentials for Colgate Warm Springs: swimsuit, towel, water bottle, camping gear, a trash bag to pack out what you pack in.