Hart Mountain Hot Springs – Eastern Oregon

Hart Mountain

Hart Mountain Hot Springs N 2

Hart Mountain

Hart Mountain Hot Springs

Hart Mountain Hot Springs

Hart Mountain Hot Springs or Antelope Hot Springs are a collection of springs nestled perfectly within the confines of the Hart Mountain National Antelope Refuge. The main 7 by 10 feet soaking pool, bordered by rock walls, is 4-foot deep. Another smaller undeveloped pool is located 100 yards away.

A rancher is said to have stuck a stick of dynamite into a rock with bubbling water spouting out of it, thus leading to the creation of the Hart Mountain Hot Springs.

Hart Mountain National Antelope Refuge is the perfect location for camping in the warmer months of the spring, summer, and the fall. Be well prepared because sometimes high desert conditions can be extreme. Due to a higher altitude, nighttime temperatures can go below the freezing point at any time of the year. During the hot summer months stay hydrated, use sunscreen and insect repellent.

This destination features a multitude of excellent spots for hunting, fishing, rock hounding and of course wildlife observation.  Along the western edges of the mountains, nature lovers can enjoy the scenic beauty of Cool Jasper, Fire Opal, and Petrified Wood. The refuge, in its entirety, is breathtakingly scenic and is the ideal location for long enjoyable hikes.


For all those desiring a stunning camping location, the camping spots at Hart Mountain are made additionally spectacular by the abundance of cool springs and crackling creeks. Furthermore, accessible all year round, the main hot spring is surrounded by rustic stone walls protecting those within from the chills of the cold winds.

The developed spring is quite deep and for those not wanting to be engulfed by the water, the undeveloped springs are ideal. With a splendid unimpeded view of the mountain ranges, these springs are the absolute top notch. The pool’s gravel and bedrock bottom provide the base for lovely spring water to bubble up from.

The Hart Mountain, Frenchglen, Blue Sky, and Hot Springs Roads are open and maintained year-round. Any vehicles can be used. Other National Refuge's roads are not maintained. Four-wheel drive vehicles with high clearance are recommended.Any road can become hazardous due to storms, drifting snow, muddy conditions, or landslides. Check current road conditions on the U.S. Fish & Wildlife Service website.

General Description

Access: 365 days 24 hours
Development: Semi-developed and undeveloped
Clothing: Optional
Service: No services are available; a pit toilet
Accommodations: Campground
Walking distance from the parking: Short
Fees: None
Elevation: 5930 ft (1807 m)
GPS coordinates: 42.50168, -119.68951
Phone: 541-947-3315
Hart Mountain (Antelope) Hot Springs are located:

  • 67 miles northeast of Lakeview
  • 112 miles southwest of Burns
  • 308 miles southeast of Eugene
  • 386 miles northeast of Portland.

Water Properties

Water T°:
Semi-developed pool 95°F(35°C) - 100°F(38°C)
Undeveloped pool 98°F(37°C) - 104°F(40°C)
Water acidity level: Weak alkaline (pH=8.3)
Type of the springs: Sodium Silicate Bicarbonate
Chemical used: None

Average dissolved solids: 695 Mg/L

Mineral Content

Carbonate - 376 Mg/L
Sodium - 191 Mg/L
Silica - 168 Mg/L
Chloride - 64 Mg/L
Sulfate - 57 Mg/L
Calcium - 10 Mg/L
Potassium - 13 Mg/L
Fluoride - 3.6 Mg/L
Magnesium - 2.5 Mg/L

Directions to Hart Mountain (Antelope) Hot Springs

From Burns:

  • Follow OR-78 East to OR-205
  • Turn right onto OR-205 South and drive for about 67 miles to Rock Creek Road
  • Turn right onto Rock Creek Road (gravel road) that becomes Frenchglen Road
  • Continue to Frenchglen Road (totally 41 miles from OR-205) to Refuge Headquarters
  • Turn left onto Hot Springs Road and continue 4.4 miles to the Hart Mountain (Antelope) Hot Springs and campground.

From the town of Plush:

  • From the north end of Plush turn on Lake County Road 3-12 or Hart Mountain Road toward Hart Lake and Mountains
  • Continue 23 miles to Refuge Headquarters (the road is mostly gravel)
  • Bear slight right onto Hot Springs Road and continue 4.4 miles to the Hart Mountain (Antelope) Hot Springs and campground.

Edward A. Sammel and Robert W. Craig. "The Geothermal Hydrology of Warner Valley, Oregon: A Reconnaissance Study". Geological Survey Professional Paper. 1981. USGS.

Weather Forecast

01/06 10%
01/07 10%
High 50° / Low 30°
Chance of Rain
01/08 50%
Chance of Rain
High 48° / Low 34°
Chance of Rain
01/09 50%
Chance of Rain
High 46° / Low 27°
01/10 20%
High 43° / Low 29°

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