Boiling River Hot Spring (Yellowstone Park)

Directions:  The Boiling River is located in Yellowstone National Park just outside Gardiner, MT near Mammoth Hot Springs on the Montana border. If you are traveling from Mammoth the main parking area will be on your right after you cross from Wyoming into Montana. If you cross the bridge over the Gardner River you have gone to far. Once you park follow the path back about 1/2 mile designated river soaking area is located.

Features:  Very hot water mixes with the cooler river water to make for a perfect temperature

Usage:  Heavy

Temperature:  Varies widely, from very hot to cool

Random Information:  One of the only places easily accessible within Yellowstone hot spring soaking is permitted.

Overall:  If your in Yellowstone its worth the trip to stop by. This spring is open all. The area is a day use only area and will be closed during times of high water in the spring.

More Info: Visit the Yellowstone National Park Mammoth Web Site here.

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Nimrod Warm Springs

Directions:  Just west of the Bearmouth exit on I-90, look for the waterfall along the east side of the road. The typical parking area is just after the guard rail past the spring however park at your own risk, No Parking signs are posted and you are on the side of a interstate highway. If you would like to avoid this check out these directions here from a fellow user of this site here.

Features:  The spring pool is fairly large and deep, the main attraction here is the underwater cave which you can get to by swimming under the rock face and popping up a few feet away inside the cave. I wouldn't recommend it but people do it all the time.

Usage:  Heavy, pack out your trash! Nimrod is popular with the college crowd during the summer.

Temperature:  70, This spring is rather cool by hot spring standards

Random Information:  Legend has it that this spring was much warmer and the area was home to a resort before the Interstate came though and changed the spring in the 1950's.

Overall:  This spring isn't worth an extra trip out of the way but if your driving by its worth stopping.

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Renova Hot Springs

Directions:  South of Whitehall, MT. Take highway 55 10 miles south of Whitehall to the Waterloo turn-off. Drive south on this road 1/2 mile, take a right after crossing the river, drive about 2 miles to Point of Rocks Road, take a left traveling north about 3.5 miles. About 200 yards before the spring there will be a small camping area to the left.

Features:  A three foot deep pool that fills like a bathtub along the side of a channel of the Jefferson River. You will need to bring two plastic party cups (or something equivalent) to plug the pipes draining the pool.

Usage:  low to moderate

Temperature:  Temperature 122 but cools as it fills

Random Information:  Be aware that this spring can be under water during high water or unusable during extreme low water. Check the gauge station near Silver Star for information. Around 700 cfs is a good river flow.

Overall:  This spring is worth the drive, there are several attractions in the area including Lewis and Clark Caverns and Upper Potosi Hot Springs

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Upper Potosi Hot Spring

Directions:  West of Pony, MT.   To reach Pony take highway 287 to Harrison, MT.  Once you reach Pony follow the signs to Potosi Campground, about 8 miles from Pony. Once you reach the campground you must walk to the springs which is about a mile from the trail head.  The springs will be on your left around a log rail fence.

Features:  Two small kidney shaped pools large enough for 8 to 10 people.

Usage:  moderate

Temperature:  110 at the source, cooler in the second pool

Overall:  If your in the area its worth checking out. There are several good hiking trails in the area to explore as well.

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