St Martins Hot Springs

Skamania County, Washington · Near Carson
45.7280°N, 121.8000°W · 432 ft
120°F 52°F air · Good soaking weather 432 ft Roadside Camping nearby (2.9 mi)
Aerial view of the ground around St Martins Hot Springs LiDAR bare-earth view of the same ground around St Martins 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.

St Martins Hot Springs is a hot spring beside the town of Carson in Skamania County, Washington, barely a mile out. The water on file is hot, above what you would sit in without cooling. No landowner and no public access status are recorded, and that matters this close to town. Check before you show up expecting to get in.

Location

Roadside, about two hundred feet from an unnamed road, at a low elevation. Wet winters with heavy rain and a fair amount of snow for the height. Wyeth Campground is about three miles away.

Winter months score best. The water is hot enough to hurt at the temperature on file. Ownership is blank, access is blank, so ask locally before visiting. No fee and no chemistry on record.

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 St Martins Hot Springs.

Setting
Gentle slope
The ground tilts gently up to the northwest.
Highest ground nearby
106 ft above the spring
Within a quarter mile, to the northwest
Cross-section through the spring

A slice through the ground from northwest to southeast, about 0.6 miles end to end.

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

Heat Below
84 milliwatts per square meter of heat flow

That's about 1½ times the US average of 65. It's higher than at 21% 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
38°
Jan
39°
Feb
43°
Mar
50°
Apr
58°
May
63°
Jun
69°
Jul
71°
Aug
64°
Sep
53°
Oct
43°
Nov
37°
Dec
Annual Precip: 65.1 in Annual Snow: 93.8 in
Best Time to Visit
January Air 38°F · Water 120°F · +83° contrast
December Air 37°F · Water 120°F · +83° contrast
February Air 39°F · Water 120°F · +81° contrast
January offers 34°F more contrast than August
Current Conditions
52°F
SSE 4.5 mph 94% Good soaking weather
Tuesday 68° Low 50° Mostly Cloudy 9% precip
Spring is +52° warmer
Wednesday 76° Low 51° Sunny
Spring is +44° warmer
Thursday 81° Low 54° Sunny 1% precip
Spring is +39° warmer
Friday 78° Low 54° Sunny 1% precip
Spring is +42° warmer
Saturday 81° Low 54° Sunny
Spring is +39° warmer
Nearby Camping
Nearby Camping
Wyeth Campground 2.9 mi away

Overview Wyeth Campground is just off of Interstate 84 in a forested setting with grassy fields. There are 13 individual sites, three group sites, and a camp host. In the past this site was a Seed Kiln, Guard Station, Church camp, Civilian Conservation Corps camp and Conscientious Objector Camp during World War II.Recreation The Wyeth trail and the Gorge 400 trail access wilderness, waterfalls, the Pacific Crest Trail and dispersed camping opportunities. Fishing, sea kayaking, kiteboarding...

Reservable Yes
Reserve on Recreation.gov →
Temperature
120°F
Warm Hot Boiling
Water Temp 120°F (49°C)
Avg Air Temp 52°F
Above Ambient +68°F
Great soaking conditions September
Access
Road Access Roadside
Distance to Road 198 ft
Frequently Asked Questions
What is the water temperature at St Martins Hot Springs?
St Martins Hot Springs has a water temperature of 120°F (49°C). This is considered a hot spring, well above body temperature.
Where is St Martins Hot Springs located?
St Martins Hot Springs is located in Skamania County, Washington at 432 feet elevation, near Carson. Coordinates: 45.7280°N, 121.8000°W.
How do I get to St Martins Hot Springs?
St Martins Hot Springs has Roadside road access (198 ft from the road).
Can I camp near St Martins Hot Springs?
Yes, Wyeth Campground is located nearby (2.9 miles away).
Is it safe to soak at St Martins Hot Springs?
With care. At 120°F St Martins Hot Springs is hot enough to need short sessions, fifteen to twenty minutes, and plenty of water. Enter slowly and get out if you feel light-headed.