Willow Creek Hot Springs | Central Idaho

Willow Creek Hot Springs is a collection of primitive soaking pools in picturesque Alpine Valley hidden in Idaho's Sawtooth National Forest at an elevation of 5,200 feet and provides a rejuvenating soaking experience in beautiful surrounding.

The hot spring consists of a series of volunteer build rock-and-sand pools cascading down the creek. Hot mineral water flows out of the source at a temperature of over 135°F and flows down into each pool. The higher the pool is located - the higher the temperature is. Depending on the season and the pool, mineral water temperature generally ranges from 135°F down to 96°F. The amount of algae depends on the pool as well. The pools are located 0.8 miles from the parking and campground. The trail is well maintained and moderate in difficulty.

Clothing is optional at this hot spring spot. The campground has a pit toilet and at the trailhead, you can find a transfer station and corrals for equestrians.

Location: 7 miles east of Featherville • Idaho • USA
Open: Year-round
Development: Primitive
Clothing: Optional
Amenities: None
Accommodations: Campground, pit toilet, a transfer station and corrals for equestrians
Hiking distance: Medium
Road access: Any vehicle
Day-use fees: None

Elevation: 5,000 ft (1,500 m)

Water T° (source): 135°F (57°C)
Water T° (pool): Varies
Water acidity level: Alkaline (pH = 9.1)
Springs Type: Sodium Silicate
Chemical used: None
Odor: None

Average dissolved solids: 266 Mg/L

Cations

Sodium (Na) - 68 Mg/L
Calcium (Ca) - 2.1 Mg/L
Potassium (K) - 0.6 Mg/L
Magnesium (Mg) - 0.03 Mg/L

Anions

Silica (SiO2) - 94 Mg/L
Sulfate (SO4) - 38 Mg/L
Chloride (Cl) - 10 Mg/L
Fluoride (F) - 3.1 Mg/L