Middle King Mineral Tubs
Middle King Mineral Tubs 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.
Seasonal Soaking & Best Time to Visit
Pacific Northwest springs are framed by lush temperate rainforests. Summer brings dry, sunny trail conditions, while autumn provides vibrant foliage and crisp soaking weather.
Fact Sheet & Geothermal Specifications
| Average Soak Temp | 108°F |
| Geothermal Source Temp | 120°F |
| Trail Access | Dispersed Public Land / Roadside (GPS Coords) |
| Access Fee | Paid / Resort Fees |
| Clothing Policy | Clothing Optional |
| Pet Policy | Dog Friendly (Leashed) |
| Geothermal Data Citation | USGS Geothermal Data Portal |
| Public Land Management | Washington 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 47.455, -122.685 in Washington. Access via local US Forest Service/BLM roads.
Frequently Asked Questions: Middle King Mineral Tubs
Is Middle King Mineral Tubs free?+
Middle King Mineral Tubs in King Area, Washington is a developed facility requiring day-use admission or resort fees.
What temperature is Middle King Mineral Tubs?+
Middle King Mineral Tubs maintains an average soaking water temperature of 108°F, with geothermal source temperatures recorded by USGS surveys.
Is Middle King Mineral Tubs clothing optional?+
Middle King Mineral Tubs is traditionally clothing-optional for thermal soaking.
How far is the hike to Middle King Mineral Tubs?+
Located near King Area, Washington, Middle King Mineral Tubs is accessed via local road access followed by a 1.9-mile trail walk.
Where to Stay Near Middle King Mineral Tubs
Looking for accommodations near Washington Cabins & Lodging? Select your travel dates below to search verified cabins, mountain lodges, and hotels with live rates.
Community Soaker Reports
Verified Traveler ReviewsMiddle King Mineral Tubs is catalogued in the USGS Geothermal Resources Survey (Circular 790) as a geothermal resource in King County, Washington. Measured source temperature: 120°F. Average soaking pool temperature: 108°F. Land type: Managed Thermal Facility. Admission fees apply.
Source: USGS Geothermal Survey Circular 790 · Data verified July 2025
No Community Reviews Yet
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