File:Baranof Warm Springs, Alaska (700034286).jpg — cc by-sa 2.0
Baranof Warm Springs flow at 124 degrees Fahrenheit from ten distinct geothermal features on the eastern shore of Baranof Island. Located in a seasonally occupied community 20 miles east of Sitka, these springs provide the thermal focus for a small settlement accessible only by water in the heart of Southeast Alaska's Alexander Archipelago.
The springs emerge at just 75 feet elevation where Baranof Island's forested slopes meet water. The mineral composition features alkaline pH of 9.4 with relatively low total dissolved solids at 268 milligrams per liter, dominated by sodium at 48 milligrams per liter. The landscape combines dense Tongass National Forest vegetation with coastal access, creating a remote settlement anchored by thermal features.
History of Baranof Warm Springs
The springs derive their name from Baranof Island itself, likely after early Russian colonial activity in the region. The geothermal manifestation reflects regional tectonic activity along the Alexander Archipelago. The community of Baranof Warm Springs developed around these thermal features as a seasonal gathering place.
Boat access only—no road or air service directly reaches the site. Flotation from Sitka takes several hours across open water. The Baranof Lake Cabin, a 4-kilometer distant floatplane journey away, serves as accommodation. Visit June through October for best conditions; weather can severely limit travel other times.
Is Baranof Warm Springs worth visiting?
Best for
- Hot spring soaking
- Backpacking adventures
- Overnight camping trips
Not ideal for
- Day trips with young children
Baranof Warm Springs rewards those willing to make the trek with a more secluded soaking experience.
Annual Precip: 104.1 in
Annual Snow: 214.5 in
January
Air 30°F · Water 124°F · +94° contrast
February
Air 31°F · Water 124°F · +93° contrast
March
Air 33°F · Water 124°F · +92° contrast
January offers 27°F more contrast than August
Recent Temperature
105.8°F
(41.0°C)
Measured Mar 23, 1972
The water at Baranof Warm Springs is alkaline (pH 9.4) with 268 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
Overview
Baranof Lake Cabin sits on the shores of greenish-blue Baranof Lake on the southwestern edge of Baranof Lake, 20 air miles east of of Sitka, Alaska. The cabin is generally available June through October, and makes an excellent base for experiencing this corner of Alaska.
This is a remote site. The cabin can be accessed by a 25-minute floatplane trip, weather permitting. In poor weather and low clouds, flying time can double, as flights must go the northern route around Baranof Islan...
Reserve on Recreation.gov →
Swimsuit & towel
Water bottle
Stay hydrated, especially in hot water
Sturdy footwear
Trail or off-road approach
Warm layers
Cold air before and after soaking
Camping gear
Nearby camping at Baranof Lake Cabin
Trash bag
Pack out what you pack in
Water shoes
Hot ground near source
USGS Quad: SITKA (A-3) 15 · PP 492: 69.0 · NOAA: 1.0 · AMS Map: SITKA
What is the water temperature at Baranof Warm Springs?
Baranof Warm Springs has a water temperature of 124°F (51°C). This is considered a hot spring, well above body temperature.
Where is Baranof Warm Springs located?
Baranof Warm Springs is located in Sitka City and Borough, Alaska at 75 feet elevation, near Sitka. Coordinates: 57.0850°N, 134.8390°W.
How do I get to Baranof Warm Springs?
Baranof Warm Springs has Backcountry road access, with the nearest road being Old Mine Road (12.3 mi from the road).
Can I camp near Baranof Warm Springs?
Yes, Baranof Lake Cabin is located nearby (2.5 miles away).
What minerals are in the water at Baranof Warm Springs?
Water chemistry analysis shows the presence of pH, Total Dissolved Solids, Calcium, Magnesium, Sodium, Sulfate, Chloride. The pH is 9.4 (alkaline). Total dissolved solids measure 268 mg/L.
Is it safe to soak at Baranof Warm Springs?
At 124°F, Baranof Warm Springs is hot enough to require caution. Enter slowly, limit soaking sessions to 15–20 minutes, and stay hydrated. Access may be on private land or unconfirmed — verify current conditions before visiting. Always tell someone your plans before visiting remote hot springs.
Is Baranof Warm Springs crowded?
Baranof Warm Springs requires a hike or off-road travel, which naturally limits crowds. You'll generally find fewer visitors on weekdays and outside peak season.
What should I bring to Baranof Warm Springs?
Essentials for Baranof Warm Springs: swimsuit, towel, water bottle, sturdy footwear for the approach, warm layers for before and after soaking, camping gear, a trash bag to pack out what you pack in. The water is over 110°F — test the temperature before entering and watch for scalding near the source.