Medical Hot Springs

Union County, Oregon · Near Union
45.0180°N, 117.6250°W · 3,523 ft
140°F 41°F air · Good soaking weather 3,523 ft Short Walk Camping nearby (9.4 mi)
Very Hot Source, Use Extreme Caution

At 140°F, the source water at Medical 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.

Aerial view of the ground around Medical Hot Springs LiDAR bare-earth view of the same ground around Medical 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.

Medical Hot Springs is a hot spring on the Medical Springs Highway in Union County, Oregon, about eighteen miles from Union. The water runs right at the line between hot and scalding. Neither ownership nor public access is recorded, so go in knowing that, and no USGS site number is attached to it.

Location

A fifth of a mile from the highway at middle elevation. Moderate snow, modest precipitation. Buck Creek Forest Camp and Trailhead is the nearest camping listed, nine miles or so away.

Winter is the season on file. The source water is hot enough to burn; let it cool and test before any contact. Access and ownership are blank in the record, so check before you go. Camp at Buck Creek. No fee listed, and no chemistry on file. Nothing is said about a pool or any structure.

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 Medical Hot Springs.

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

A slice through the ground from west to east, about 0.6 miles end to end.

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

Heat Below
73 milliwatts per square meter of heat flow

That's close to the US average of 65. It's higher than at 9% 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
27°
Jan
30°
Feb
37°
Mar
44°
Apr
53°
May
61°
Jun
71°
Jul
72°
Aug
62°
Sep
48°
Oct
35°
Nov
27°
Dec
Annual Precip: 24.7 in Annual Snow: 83.6 in
Best Time to Visit
January Air 27°F · Water 140°F · +113° contrast
December Air 27°F · Water 140°F · +113° contrast
February Air 30°F · Water 140°F · +110° contrast
January offers 44°F more contrast than August
Current Conditions
41°F
SSW 0.0 mph 95% Good soaking weather
Today 69° Low 48° Partly Sunny 4% precip
Spring is +71° warmer
Wednesday 73° Low 50° Sunny 7% precip
Spring is +67° warmer
Thursday 71° Low 50° Rain Showers Likely 60% precip
Spring is +69° warmer
Friday 73° Low 51° Mostly Sunny 12% precip
Spring is +67° warmer
Saturday 75° Low 53° Sunny 1% precip
Spring is +65° warmer
Nearby Camping
Nearby Camping
Buck Creek Forest Camp And Trailhead 9.4 mi away

Located on the western side of the Eagle Cap Wilderness and very close to the wilderness boundary, the Buck Creek Campground/Trailhead was built to meet the needs of both wilderness trail users and overnight campers. After crossing the Buck Creek Bridge off the North Fork Catherine Creek Road, the narrow dirt road travels through isolated forest and towering rock cliffs to the combination campground and trailhead.The area is also very popular for mushrooming in the Spring and berry picking in...

Reserve on Recreation.gov →
Temperature
140°F
Warm Hot Boiling
Water Temp 140°F (60°C)
Avg Air Temp 47°F
Above Ambient +93°F
Great soaking conditions September
Access
Road Access Short Walk
Nearest Road Medical Springs Highway
Distance to Road 0.2 mi
Frequently Asked Questions
What is the water temperature at Medical Hot Springs?
Medical Hot Springs has a water temperature of 140°F (60°C). This is considered a hot spring, well above body temperature.
Where is Medical Hot Springs located?
Medical Hot Springs is located in Union County, Oregon at 3,523 feet elevation, near Union. Coordinates: 45.0180°N, 117.6250°W.
How do I get to Medical Hot Springs?
Medical Hot Springs has Short Walk road access, with the nearest road being Medical Springs Highway (0.2 mi from the road).
Can I camp near Medical Hot Springs?
Yes, Buck Creek Forest Camp And Trailhead is located nearby (9.4 miles away).
Is it safe to soak at Medical Hot Springs?
With care. At 140°F Medical 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.