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Guide to Northwest Hot Springs and Red Spider Mites


Magnified view of the infamous Red Spider Mite

Ahh yes, a natural nemesis of the hot springer, the Red Spider Mite (RSM) is known to inhabit a few hot springs. Barley visible to the naked eye, these tiny crimson mites scurry about on rocks and the top of water in and around select hot springs in Idaho and the Northwest.

They cling to the body (including clothing left next to the pools) and proceed to bite the skin in an unsuccessful attempt to lay eggs. The bites leave itchy red sores behind that usually heal completely after a couple weeks. It is highly advisable to use itch relief cream and avoid itching the bites. The human immune system kills off the eggs before they can hatch and eventually builds up enough immunity to kill off the mites themselves.

Precautionary Measures

  • Avoid the hot, dry rocks near and next to hot springs as the majority of RSMs inhabit this area.
  • Use bug juice, but only after your soak - RSMs usually wait to dig-in until their host has dry skin, applying bug juice after soaking should reduce your chances of receiving bites.

The complete list of hot springs in the northwest with reported and/or confirmed Red Spider Mite inhabitants:

Atlanta Hot Springs (ID)
Confirmed by guide book and hot springers - multiple confirmations
RSM Activity Level: High

Bear Valley Hot Springs (ID)
Confirmed by self and hot springers - multiple confirmations
RSM Activity Level: High

Bogg Hot Springs (NV)
Confirmed by self and hot springers - multiple confirmations
RSM Activity Level: Moderate

Buckhorn Hot Springs (ID)
Confirmed by self and hot springers - multiple confirmations
RSM Activity Level: Light

Chattanooga Hot Springs (ID)
Confirmed by hot springers - multiple confirmations
RSM Activity Level: High

Granite Creek Hot Springs (ID)
Confirmed by hot springer - single confirmation
RSM Activity Level: Light

Kirkham Hot Springs (ID)
Confirmed by hot springer - single confirmation
RSM Activity Level: Low - Moderate

Loftus Hot Springs (ID)
Confirmed by hot springer - single confirmation
RSM Activity Level: High

Prince Albert Hot Springs (ID)
Confirmed by hot springer - single confirmation
RSM Activity Level: High

Secesh Hot Springs (ID)
Confirmed by self and hot springers - multiple confirmations
RSM Activity Level: Low

Soldier Meadows Hot Springs (NV)
Confirmed by hot springer - single confirmation
RSM Activity Level: Moderate

Vulcan Hot Springs (ID)
Confirmed by hot springers - multiple confirmations
RSM Activity Level: High
Note: There is a possibility that RSMs are being confused with 'Chiggers'

Whitey Cox Hot Springs (ID)
Confirmed by hot springers - multiple confirmations
RSM Activity Level: High

Willow Creek Hot Springs (ID)
Confirmed by self and hot springers - multiple confirmations
RSM Activity Level: Low

Know of a hot springs in the Northwest with RSMs not on the above list?

Talk about Red Spider Mites in the Forums

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