HotPrimitive

Poison Springs

ID

About Poison Springs

Poison Springs sits quietly in the high country of Custer, Idaho, offering a raw and authentic hot spring experience. At an elevation of 7,569 feet, the mineral-rich waters provide a soothing retreat framed by rugged natural beauty. Its unique blend of minerals has long attracted visitors interested in the spring’s reputed healing qualities.

Getting There

You reach Poison Springs easily via a drive-up route, making it one of the more accessible hot springs in Idaho. Ample parking is available nearby, so you can arrive without the hassle of a lengthy hike or a challenging off-road trail.

What to Expect

The natural pools feature steamy, mineral-laden water that maintains a comfortably warm temperature year-round. The atmosphere remains quiet and intimate, with few visitors interrupting the peaceful setting. Facilities are minimal, preserving the primitive charm of this Idaho swimming hole.

Tips for Visitors

Plan your visit anytime during the year to enjoy consistently warm waters surrounded by crisp mountain air. Bring your own towels and water, as no amenities are provided, and observe any posted guidelines to protect the delicate environment. Fees are not clearly stated, so prepare for a small donation or permit if required.

Last updated December 21, 2025
Poison Springs

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Access

Drive Up

Parking

Ample

Fee

Unknown

Cell Service

Unknown

Crowds

Quiet

Best Season

Year Round

Nearby Springs

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