Broadwater (Helena) Hot Springs

Lewis and Clark County, Montana · Near Helena West Side
46.5960°N, 112.1080°W · 4,033 ft
151°F 39°F air · Good soaking weather 4,033 ft Roadside Camping nearby (8.5 mi)
Very Hot Source, Use Extreme Caution

At 151°F, the source water at Broadwater (Helena) Hot Springs is hot enough to cause burns. Some hot springs this hot have cooler side pools or downstream areas suitable for soaking. Always test the water temperature before entering.

Broadwater, also called Helena Hot Springs, is a scalding source on the west side of Helena in Lewis and Clark County, Montana, a third of a mile from Helena West Side. The water comes out hot enough to cause burns on contact. It is alkaline, with iron in the water. A 1976 USGS sample is the chemistry on file. Nobody is listed as owner, and access status is blank. A photo exists.

Location
0 miles from Helena West Side, MT

Twenty-one feet from the nearest road, a roadside point at the edge of town, in the valley at Helena's elevation. Snow comes in at under four feet most years and the area is on the dry side. Moose Creek Cabin is the camping we list, eight and a half miles off. The land unit is blank.

Do not touch the source water; it will burn in seconds. Whether any of it is cooled for use is not in the record, and neither is who owns the site. Winter months are listed. Half a century has passed since the chemistry was taken.

Terrain

Aircraft with laser scanners measured this ground to within inches. The scan strips out trees and buildings, leaving the bare shape of the land around Broadwater (Helena) Hot Springs.

Aerial view of the ground around Broadwater (Helena) Hot Springs LiDAR bare-earth view of the same ground around Broadwater (Helena) Hot Springs
Aerial LiDAR bare earth

Drag the handle to compare the two views. The orange dot marks the spring, in a frame about three quarters of a mile wide.

Setting
Hillside
The spring sits on a steep slope that climbs to the south.
Highest ground nearby
340 ft above the spring
Within a quarter mile, to the south
Cross-section through the spring

A slice through the ground from south to north, about 0.6 miles end to end.

Elevation data: USGS 3D Elevation Program. Aerial imagery: USGS The National Map. Public domain.

Heat Below
126 milliwatts per square meter of heat flow

That's about twice the US average of 65. It's higher than at 76% of the springs on this site.

Heat flow measures the warmth working its way up through the ground from deep inside the earth. Where it runs high, rain and snowmelt that seep down through cracks in the rock come back up hot.

Heat flow estimate: Stanford Thermal Earth Model (Aljubran & Horne, 2024), CC BY 4.0.

Monthly Climate
22°
Jan
21°
Feb
32°
Mar
41°
Apr
52°
May
61°
Jun
70°
Jul
69°
Aug
58°
Sep
43°
Oct
31°
Nov
22°
Dec
Annual Precip: 18.0 in Annual Snow: 47.0 in
Best Time to Visit
February Air 21°F · Water 151°F · +130° contrast
January Air 22°F · Water 151°F · +129° contrast
December Air 22°F · Water 151°F · +129° contrast
February offers 49°F more contrast than July
Current Conditions
39°F
Clear N 0.0 mph 87% Good soaking weather
Today 69° Low 47° Sunny 1% precip
Spring is +82° warmer
Wednesday 66° Low 46° Partly Sunny 6% precip
Spring is +85° warmer
Thursday 76° Low 52° Sunny then Slight Chance Showers And Thunderstorms 15% precip
Spring is +75° warmer
Friday 71° Low 50° Showers And Thunderstorms Likely 60% precip
Spring is +80° warmer
Saturday 74° Low 49° Sunny 12% precip
Spring is +77° warmer
Water Chemistry Sampled 1976-04-27

The water at Broadwater (Helena) Hot Springs is slightly alkaline (pH 8.3).

pH 8.3 Slightly Alkaline
pH influences mineral absorption through skin
Calcium 12 mg/L
May support bone density and joint health
Magnesium 1 mg/L
Known for muscle relaxation and stress relief
Sodium 170 mg/L
Supports circulation and skin hydration
Sulfate 170 mg/L
Traditionally used for skin conditions and inflammation
Chloride 33 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
Moose Creek Cabin 8.5 mi away

Overview Moose Creek Cabin is situated in an grassy clearing surrounded by conifer forest in the Tenmile Creek drainage west of Helena, Montana. The cabin was constructed in 1907 and used by the Forest Service during the early history of the agency. It has served as a Forest Service Ranger Station, guard station, and work center for the Civilian Conservation Corps. Today, the cabin is a rustic retreat for guests seeking relaxation and recreation. The cabin is accessible by car, but guests...

Reservable Yes
Reserve on Recreation.gov →
Temperature
151°F
Warm Hot Boiling
Water Temp 151°F (66°C)
Avg Air Temp 43°F
Above Ambient +108°F
Great soaking conditions September
Access
Road Access Roadside
Distance to Road 21 ft
Frequently Asked Questions
What is the water temperature at Broadwater (Helena) Hot Springs?
Broadwater (Helena) Hot Springs has a water temperature of 151°F (66°C). This is considered a hot spring, well above body temperature.
Where is Broadwater (Helena) Hot Springs located?
Broadwater (Helena) Hot Springs is located in Lewis and Clark County, Montana at 4,033 feet elevation, near Helena West Side. Coordinates: 46.5960°N, 112.1080°W.
How do I get to Broadwater (Helena) Hot Springs?
Broadwater (Helena) Hot Springs has Roadside road access (21 ft from the road).
Can I camp near Broadwater (Helena) Hot Springs?
Yes, Moose Creek Cabin is located nearby (8.5 miles away).
What minerals are in the water at Broadwater (Helena) Hot Springs?
Water chemistry analysis shows the presence of pH, Calcium, Magnesium, Sodium, Sulfate, Chloride, Iron. The pH is 8.3 (slightly alkaline).
Is it safe to soak at Broadwater (Helena) Hot Springs?
No, not at the source. The water at Broadwater (Helena) Hot Springs reaches 151°F, which can cause severe burns within seconds. Look for cooled side pools or downstream stretches, and test with a hand before anything else.
Sources: USGS NWIS