Warm Spring

Union County, Oregon · Near Union
45.2950°N, 117.8060°W · 2,953 ft
85°F 38°F air · Good soaking weather 2,953 ft Roadside Camping nearby (6.3 mi)

Warm Spring in Union County is a roadside spring about seven miles from the town of Union and a few steps from Hill Street. The water is warm, in the mid eighties, too cool for a real soak and fine for a wade. Ownership and access are blank on the record. There is a photo on file.

Location

Hill Street runs within fifty-some feet, so reaching the spring is a matter of pulling over. Elevation is under three thousand feet. The valley here gets about thirty inches of precipitation and a little over four feet of snow in a typical winter. No land manager is recorded. Moss Springs Campground is the closest camping listed, a bit over six miles off.

Winter rates best. Hill Street is the named street here, and with no land owner on file, ownership is a question to settle before you treat the place as public. Moss Springs Campground sits six miles away if you want to camp. No water chemistry has been done. The water is warm and nothing close to hot.

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 Warm Spring.

Aerial view of the ground around Warm Spring LiDAR bare-earth view of the same ground around Warm Spring
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
Gentle slope
The ground tilts gently up to the southwest.
Highest ground nearby
195 ft above the spring
Within a quarter mile, to the southwest
Cross-section through the spring

A slice through the ground from southwest to northeast, about 0.6 miles end to end.

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

Heat Below
77 milliwatts per square meter of heat flow

That's close to the US average of 65. It's higher than at 12% 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
29°
Jan
31°
Feb
38°
Mar
44°
Apr
52°
May
60°
Jun
73°
Jul
73°
Aug
65°
Sep
49°
Oct
36°
Nov
29°
Dec
Annual Precip: 30.3 in Annual Snow: 51.8 in
Best Time to Visit
January Air 29°F · Water 85°F · +56° contrast
December Air 29°F · Water 85°F · +56° contrast
February Air 31°F · Water 85°F · +54° contrast
January offers 44°F more contrast than August
Current Conditions
38°F
SSW 0.0 mph 91% Good soaking weather
Today 72° Low 43° Partly Sunny 5% precip
Spring is +13° warmer
Wednesday 76° Low 45° Sunny 6% precip
Spring is +9° warmer
Thursday 74° Low 46° Chance Rain Showers then Chance Showers And Thunderstorms 47% precip
Spring is +11° warmer
Friday 78° Low 47° Sunny 10% precip
Spring is +7° warmer
Saturday 81° Low 48° Sunny 1% precip
Spring is +4° warmer
Where to Stay

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Nearby Camping
Moss Springs Campground 6.3 mi away

Located above Cove, Oregon, the Moss Springs Campground lies on a ridgeline within view of the Eagle Cap Wilderness and is next to Moss Springs Trailhead. This popular campground was constructed to accommodate visitors with packstock, riding stock and campers bound for the wilderness. The site also has 3 accessible campsites and toilets. Trails from the campground drop steeply into the Minam River drainage or follow Grande Ronde Ridge.

Reserve on Recreation.gov →
Temperature
85°F
Warm Hot Boiling
Water Temp 85°F (29°C)
Avg Air Temp 48°F
Above Ambient +37°F
Mild soaking conditions September
Access
Road Access Roadside
Nearest Road Hill Street
Distance to Road 54 ft
Frequently Asked Questions
What is the water temperature at Warm Spring?
Warm Spring has a water temperature of 85°F (29°C). This is a warm thermal spring.
Where is Warm Spring located?
Warm Spring is located in Union County, Oregon at 2,953 feet elevation, near Union. Coordinates: 45.2950°N, 117.8060°W.
How do I get to Warm Spring?
Warm Spring has Roadside road access, with the nearest road being Hill Street (54 ft from the road).
Can I camp near Warm Spring?
Yes, Moss Springs Campground is located nearby (6.3 miles away).
Sources: Wikipedia