Hot Springs Fed Pool & Hot Tub

Where It’s FUN to Get In HOT WATER!

Our main attraction is our beautiful, chemical-free, hot springs pool.
The natural, mineral, hot springs bubble up from the ground at 107° year round.
Our swimming pool average water temperature is 92(winter)-96°(summer) and 102(winter)-105°(summer) for the hot tub.

Click Here For Our Water’s Mineral Content

Everyone in the family will relish a refreshing dip, regardless of age. The pool is perfect for exercising, young children, the elderly, and women with “baby on board” – all of which are groups of people that need to avoid the hotter temperatures of the hot tub. For the ultimate in relaxation, follow your swim with a session in our dry sauna or 8 person hot tub.


The 20′ by 70′ pool has a 9’ deep area diminishing to a 10” wading pool. It is covered by a dome in the colder months, throughout most of Fall, Winter and Spring. The giant greenhouse-looking dome keeps the pool usable year-round by keeping the water warm as well as by keeping the air warm around the water.


Sacajawea Lodge, Meriwether Lewis Lodge and Cabin occupancy includes access to the pool, hot tub & dry sauna as well as one pool towel per day. Our daily rate is discounted by $1 for those staying in our RV Park and Campground. Keep in mind this is also the bathhouse, with changing rooms and showers. There is only a rustic outhouse (and port-a-pot in the summer) available in the camping area.



Day use and camping guests are encouraged to bring their own swim towels,
though we do have towels and suits available for rent as well as pool toys, snacks and sodas available for sale in the pool office.



Swim cards never expire. They can only be used during regular business hours.
Feel free to share cards but there can be no more than 5 punches, on one card, in one day.


Adults $66 ($64 with the cash discount)
Children and Seniors $50 ($48 with the cash discount)

Daily Rates During Regular Business Hours:

Stay All Day, Come and Go As You Please

Toddlers (Ages 1 & 2) ~ $2.25

Children (3 thru 13) ~ $6.25

Adults (14 thru 59) ~ $8.25

Seniors (60 plus) ~ $6.25

$.25 Cash Discount

No Lifeguard On Duty
Unsupervised Children Under 14 Not Allowed
“Swim Diapers” required for babies ($2.50)

Please review our Pool Hours & Policies.



About Lost Trail Hot Springs

Lost Trail Hot Springs Resort is located at the base of Lost Trail Pass in the beautiful Bitterroot Valley of Western Montana. We have year round opportunities galore for photographers, bird watchers, nature lovers, hikers, bikers, hunters, fishermen - everyone!

Halfway between Yellowstone and Glacier, make this your overnight getaway from the crowds as you journey on your jam-packed once-in-a-lifetime Montana experience!


283 Lost Trail Hot Springs Road
Sula, Montana 59871
Phone: (406)821-3574 from 8am - 9pm
Facebook "Lost Trail Hot Springs"