Warm Spring, Hot Spring

San Bernardino County County, California · Near Lake Arrowhead
34.3400°N, 117.1730°W · 3,520 ft
108°F 3,520 ft Open Short Walk US Forest Service Camping nearby (5.1 mi)
Warm Spring, Hot Spring
Image via Wikidata

Deep Creek Hot Springs flows at a robust 108°F in the San Bernardino National Forest near Lake Arrowhead. With 352 mg/L total dissolved solids and a sodium-sulfate composition, this is one of Southern California's most actively visited geothermal features.

The spring pools lie along Deep Creek at 3,520 feet elevation in desert mountain terrain where ponderosa pines and juniper intersperse among large granite outcrops. A 1,100-foot walk from 3N67/3N59 Road descends through mixed conifer forest to creek-side pools where flowing thermal water creates stark contrasts with the cooler mountain stream.

History of Warm Spring, Hot Spring

Deep Creek's geothermal activity reflects the Mojave Desert's underlying heat, expressed through faults and fractures in the Precambrian granite basement. The northern Mojave's geothermal provinces tap deep hot rock, with water circulating through these ancient crystalline structures.

Multiple pools and access points make this spring versatile for different experience preferences. North Shore Campground sits 8.2 km away, offering developed recreation options. The spring sits on federal land with multiple-use protection, guaranteeing public access for day-use geothermal exploration.

Is Warm Spring, Hot Spring worth visiting?

Best for

  • Hot spring soaking
  • Overnight camping trips
Warm Spring, Hot Spring is well suited for hot spring soaking and overnight camping trips.
Monthly Climate
47°
Jan
48°
Feb
52°
Mar
58°
Apr
63°
May
74°
Jun
79°
Jul
79°
Aug
73°
Sep
64°
Oct
54°
Nov
46°
Dec
Annual Precip: 9.4 in Annual Snow: 6.0 in
Best Time to Visit
December Air 46°F · Water 108°F · +62° contrast
January Air 47°F · Water 108°F · +61° contrast
February Air 48°F · Water 108°F · +60° contrast
December offers 33°F more contrast than August
Water Chemistry Sampled 1992-07-03

The water at Warm Spring, Hot Spring is slightly alkaline (pH 8.2) with 352 mg/L total dissolved solids.

pH 8.2 Slightly Alkaline
pH influences mineral absorption through skin
Higher mineral concentration for therapeutic soaking
Calcium 19 mg/L
May support bone density and joint health
Magnesium 2 mg/L
Known for muscle relaxation and stress relief
Sodium 85 mg/L
Supports circulation and skin hydration
Sulfate 150 mg/L
Traditionally used for skin conditions and inflammation
Chloride 15 mg/L
Natural antiseptic with skin health benefits
Nearby Camping
North Shore (Ca) 5.1 mi away

Overview North Shore Campground is a quiet place to camp, away from the hustle and bustle of nearby cities. The campground is nestled among Southern California's pine-covered mountains, providing ample opportunity for outdoor relaxation and recreation.Recreation The North Shore National Recreation Trail connects the campground with Papoose Lake (trail is not accessible). The 1.7-mile trail descends through a mixed conifer forest and settles along Little Bear Creek, providing scenic views of t...

Reservable Yes
Reserve on Recreation.gov →
What to Bring
Swimsuit & towel
Water bottle Stay hydrated, especially in hot water
Camping gear Nearby camping at North Shore (Ca)
Trash bag Pack out what you pack in
References
USGS Quad: LAKE ARROWHEAD 7.5 · PP 492: 160.0 · NOAA: 1.0 · AMS Map: SAN BERNARDINO
Frequently Asked Questions
What is the water temperature at Warm Spring, Hot Spring?
Warm Spring, Hot Spring has a water temperature of 108°F (42°C). This is considered a hot spring, well above body temperature.
Where is Warm Spring, Hot Spring located?
Warm Spring, Hot Spring is located in San Bernardino County, California at 3,520 feet elevation, near Lake Arrowhead. Coordinates: 34.3400°N, 117.1730°W.
How do I get to Warm Spring, Hot Spring?
Warm Spring, Hot Spring has Short Walk road access, with the nearest road being 3N67/3N59 (0.2 mi from the road).
Is Warm Spring, Hot Spring free to visit?
Warm Spring, Hot Spring has Open access. It is managed by US Forest Service.
Can I camp near Warm Spring, Hot Spring?
Yes, North Shore (Ca) is located nearby (5.1 miles away).
What minerals are in the water at Warm Spring, Hot Spring?
Water chemistry analysis shows the presence of pH, Total Dissolved Solids, Calcium, Magnesium, Sodium, Sulfate, Chloride. The pH is 8.2 (slightly alkaline). Total dissolved solids measure 352 mg/L.
Is it safe to soak at Warm Spring, Hot Spring?
Warm Spring, Hot Spring is generally safe for soaking at its recorded temperature. Always tell someone your plans before visiting remote hot springs.
Is Warm Spring, Hot Spring crowded?
Warm Spring, Hot Spring sees varying levels of visitors depending on the season and day of the week.
What should I bring to Warm Spring, Hot Spring?
Essentials for Warm Spring, Hot Spring: swimsuit, towel, water bottle, camping gear, a trash bag to pack out what you pack in.
Temperature
108°F
Warm Hot Boiling
Water Temp 108°F (42°C)
Avg Air Temp 62°F
Above Ambient +47°F
Great soaking conditions March
Access
Open
Road Access Short Walk
Nearest Road 3N67/3N59
Distance to Road 0.2 mi
Land
Ownership Federal
Agency US Forest Service
Designation National Forest
Unit San Bernardino National Forest
Manager US Forest Service
Protection 3 - Protected, subject to extractive use