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Mt St Helens Fumaroles

WA190°F

About Mt St Helens Fumaroles

Mt St Helens Fumaroles is a striking geothermal feature nestled on the volcanic slopes of Washington. Temperatures soaring up to 190°F create steaming vents where the Earth's heat visibly escapes, offering a raw, otherworldly experience. This primitive hot spring reveals the power beneath the landscape, connecting you directly to the volcanic forces shaping the region.

Getting There

Reaching the Mt St Helens Fumaroles involves a rugged hike through dense forests and volcanic terrain. The trail can be steep and uneven, demanding sturdy footwear and some endurance. Parking is limited at trailheads, so plan to arrive early to secure a spot before setting out on foot.

What to Expect

You won’t find developed pools or modern conveniences here; instead, the fumaroles offer intense heat and an eerie mix of steam and sulfuric scents rising from the ground. The area stays relatively quiet since access is challenging, allowing for a peaceful, almost primal encounter with nature’s geothermal power.

Tips for Visitors

Avoid touching the vents directly—temperatures can cause serious burns. Visit during drier months to reduce trail slipperiness and bring plenty of water and weather-appropriate gear. No fees are required, but respect for the fragile volcanic environment is essential to preserve this powerful natural phenomenon.

Last updated December 20, 2025

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