File:Lytle Creek Ranger Station Sign, San Bernardino NF (3720847203).jpg — public domain
Tyler's Bath Spring emerges at 92 degrees in the San Bernardino National Forest, producing water 30 degrees warmer than the ambient air temperature in high-altitude terrain where the San Gabriel Mountains rise sharply above the LA Basin.
A short walk from the parking area leads through mixed conifers to the spring at 3,100 feet elevation. The warm water emerges into a small rocky basin surrounded by pine and fir forest, offering a quiet alpine setting away from urban sprawl.
History of Tylers Bath Spring
The spring sits within geologically active terrain where mineral-rich water heated deep underground rises through fractured rock. Historical use by local communities and Forest Service management maintains public access while protecting the natural resource.
The spring is easily accessible via a short walk from a nearby trailhead. Visit year-round, though winter snows may temporarily block access. The 92-degree water is suitable for soaking, and the surrounding forest provides scenic hiking opportunities.
Is Tylers Bath Spring worth visiting?
Best for
- Warm-water soaking
- Overnight camping trips
Tylers Bath Spring is well suited for warm-water soaking and overnight camping trips.
Annual Precip: 18.0 in
Annual Snow: 6.7 in
December
Air 49°F · Water 92°F · +43° contrast
January
Air 50°F · Water 92°F · +42° contrast
February
Air 50°F · Water 92°F · +42° contrast
December offers 29°F more contrast than August
The water at Tylers Bath Spring is slightly alkaline (pH 7.9) with 330 mg/L total dissolved solids.
pH influences mineral absorption through skin
Higher mineral concentration for therapeutic soaking
May support bone density and joint health
Known for muscle relaxation and stress relief
Supports circulation and skin hydration
Traditionally used for skin conditions and inflammation
Natural antiseptic with skin health benefits
Located three miles north of the Lytle Creek Ranger Station, the campground provides an easy get-away. Trees surround the campsites and Lytle Creek flows across the street at Applewhite Picnic Area. Please use caution crossing the road.
Reserve on Recreation.gov →
Swimsuit & towel
Water bottle
Stay hydrated, especially in hot water
Camping gear
Nearby camping at Applewhite Campground
Trash bag
Pack out what you pack in
USGS Quad: (DEVORE 7.5) · PP 492: 158.0 · NOAA: 2.0 · AMS Map: SAN BERNARDINO
What is the water temperature at Tylers Bath Spring?
Tylers Bath Spring has a water temperature of 92°F (33°C). This is a warm thermal spring.
Where is Tylers Bath Spring located?
Tylers Bath Spring is located in San Bernardino County, California at 3,100 feet elevation, near Fontana. Coordinates: 34.2280°N, 117.4830°W.
How do I get to Tylers Bath Spring?
Tylers Bath Spring has Short Walk road access (0.1 mi from the road).
Is Tylers Bath Spring free to visit?
Tylers Bath Spring has Open access. It is managed by US Forest Service.
Can I camp near Tylers Bath Spring?
Yes, Applewhite Campground is located nearby (2.3 miles away).
What minerals are in the water at Tylers Bath Spring?
Water chemistry analysis shows the presence of pH, Total Dissolved Solids, Calcium, Magnesium, Sodium, Sulfate, Chloride. The pH is 7.9 (slightly alkaline). Total dissolved solids measure 330 mg/L.
Is it safe to soak at Tylers Bath Spring?
Tylers Bath Spring is generally safe for soaking at its recorded temperature. Always tell someone your plans before visiting remote hot springs.
Is Tylers Bath Spring crowded?
Tylers Bath Spring sees varying levels of visitors depending on the season and day of the week.
What should I bring to Tylers Bath Spring?
Essentials for Tylers Bath Spring: swimsuit, towel, water bottle, camping gear, a trash bag to pack out what you pack in.