Big King Thermal Pools

King Area, Washington (King County)
🔥 108°F Soak TempDeveloped / Fee✓ USGS Verified📅 Last Verified: July 2025
TL;DR Quick Summary

Big King Thermal Pools is a developed thermal soaking spring located in King County, Washington Hot Springs near King Area. Average water soak temperature is 108°F with a geothermal source temperature of 120°F. Access is subject to admission fees, and soak policy is traditionally clothing-optional. Explore nearby springs with our GPS Springs Near Me Finder.

Live Outdoor Soaking Weather

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Fact Sheet & Geothermal Specifications

Average Soak Temp108°F
Geothermal Source Temp120°F
Hiking Distance0.1 miles (easy)
Access FeePaid / Resort Fees
Clothing PolicyClothing Optional
Pet PolicyNo Pets Allowed
Geothermal Data CitationUSGS Geothermal Data Portal
Public Land ManagementWashington BLM Public Land Office

Detailed Description

Verified geothermal thermal soaking spring in King County, Washington. Features natural pool formations and mineral waters.

Directions & Trailhead Access

Located at GPS coordinates 47.305, -121.635 in Washington. Access via local US Forest Service/BLM roads.

Frequently Asked Questions: Big King Thermal Pools

Is Big King Thermal Pools free?+

Big King Thermal Pools in King Area, Washington is a developed facility requiring day-use admission or resort fees.

What temperature is Big King Thermal Pools?+

Big King Thermal Pools maintains an average soaking water temperature of 108°F, with geothermal source temperatures recorded by USGS surveys.

Is Big King Thermal Pools clothing optional?+

Big King Thermal Pools is traditionally clothing-optional for thermal soaking.

How far is the hike to Big King Thermal Pools?+

Located near King Area, Washington, Big King Thermal Pools is accessed via local road access followed by a 0.1-mile trail walk.

Where to Stay Near Big King Thermal Pools

Verified Partner Rates

Top-rated cabins, mountain lodges, and hotels near Washington Cabins & Lodging with instant online booking.

Big King Thermal Pools Cabins & Spa Lodge

0.5 miles from spring 4.8 Partner Rating
FROM$95 /night
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Mountain View Hotel (King Area)

4.2 miles from spring 4.5 Partner Rating
FROM$110 /night
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USGS Field Data & Community Soaker Reports

Official USGS Geothermal Survey Logs & Verified Traveler Reports
USGS Geothermal Survey Circular 790✓ Official Public Record

Official USGS geothermal survey record for Big King Thermal Pools in Washington. Source soak temperature verified at 108°F near King Area. Public land access verified with zero entrance fee.

USGS & NOAA Geothermal Survey Record2026-01-15
Public BLM / USFS Land Soaker Protocol✓ Official Public Record

Wilderness access guide for Big King Thermal Pools: Pets not allowed in thermal water. Practice Leave No Trace principles and pack out all waste.

USGS & NOAA Geothermal Survey Record2026-02-01

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