Boulder Hot Springs: A Peaceful Retreat
Little beats the level of relaxation offered by a natural hot springs, especially when paired with Montana’s stunning landscapes! Uniquely to the Southwest Montana region, we have six fully developed natural hot springs that are easily accessible for visitors. We are going to spend the next two months exploring these properties as we highlight each spring and things to do in the area! Don’t take our word for it, but winter is the perfect time to explore these incredible natural springs. First up, we have Boulder Hot Springs located in – yup, you guessed it – Boulder, Montana.
Boulder Hot Springs might just be the most unique of the six springs in our region and with operation dating back to 1863, there is no doubt there is a rich history to accompany this soaking experience. So let’s dive in!
Boulder Hot Springs Inn, Spa and Retreat Center is dedicated to being a place of “retreat, sanctuary, peace and healing.” As such, they are a smoke, alcohol and drug-free establishment that focuses on being a wellness retreat meant to rejuvenate your body and soul. The property features a larger outside pool, a women’s and co-ed plunge, and indoor steam rooms. They also offer spa services that can be booked in advance of your visit to the springs.
History of Boulder Hot Springs
If you’ve followed the blog for any amount of time, or are familiar with Montana’s history, it should come as no surprise that as we rewind the clock to Boulder Hot Springs inception in 1863 we start talking about mining in the area. A prospector, James E. Riley was the first to construct on the site, serving prospectors and others in the area with a saloon and bathhouse. Finding early success with locals, Riley began construction on a hotel to accommodate 50 guests in 1881. Unfortunately, Riley died of small Pox and this brought on a journey through various owners and renovations.
The millionaires of the time were congregated in Helena and Butte, and Hotel May (or Boulder Hot Springs) was perfectly situated as a 2 hour train ride from both hubs. The property changed hands many times over the years, but in 1909 James A. Murray, a Butte miner and millionaire purchased the hotel. Following the purchase, the hotel saw another round of renovations which featured an updated interior design. Renowned for its opulent interior, including exquisite Chinese motifs and Tiffany glass light globes, the hotel attracted visitors from far and wide. The property boasts that it once served Presidents, celebrities and the ultra-wealthy. Among their most notable guests are Teddy Roosevelt, Warren Harding, and a visit by FDR.
The next transformation of the property came when the property sold to CL “Pappy” Smith in 1940. Pappy transformed the hotel into the Diamond S Ranchotel. Operating as a dude ranch, the Diamond S offered a taste of the Old West with trail rides and Saturday night smorgasbords that would draw as many as 4-500 people.
The hotel was added to the National Historic Register in 1979.
Today, Boulder Hot Springs continues its legacy as a haven of relaxation and rejuvenation. Visitors can indulge in the outdoor pool, steam rooms, and therapeutic plunges. Treat yourself to massages and delectable meals, all while surrounded by antiques and artworks that celebrate the rich history of the place.

Things to Do near Boulder, Montana
1. Tizer Gardens & Arboretum
Tizer Gardens is a lush oasis in the heart of Montana. Wander through themed gardens filled with vibrant flowers, serene water features, and winding paths perfect for a peaceful stroll. It’s a magical spot for plant enthusiasts and families alike, offering seasonal events and plenty of photo-worthy moments.

2. Elkhorn Ghost Town State Park
Step back in time with a visit to Elkhorn Ghost Town, a preserved slice of Montana’s mining history and one of Montana’s smallest State Parks. Walk among weathered buildings and imagine the bustling community that once thrived here during the silver boom of the late 19th century. Fraternity Hall and Gillian Hall are two iconic structures that stand as relics of the town’s golden era and make up the majority of the site.
3. Lewis & Clark Caverns
Explore the stunning limestone caverns at Lewis and Clark Caverns State Park. Guided tours take you through a maze of limestone caves adorned with breathtaking stalactites and stalagmites. Above ground, enjoy hiking trails, picnic spots, and sweeping views of the Jefferson River Valley. Open ~Memorial Day to Labor Day.
4. Annual Events in Boulder, Montana
Boulder comes alive year-round with vibrant community events. In winter, skijoring combines skiing and horseback riding in an adrenaline-pumping spectacle. Summer brings the Jefferson County Fair and Rodeo, featuring thrilling rodeo events, live music, and family-friendly fun. As fall settles in, Big Rock Fright Nights deliver spine-tingling Halloween scares with haunted attractions for all ages.
Add Boulder Hot Springs to Your Montana Itinerary
Located within easy reach of attractions like Tizer Gardens, Gates of the Mountains, and both Yellowstone and Glacier National Parks, Boulder Hot Springs offers a perfect base for exploring the wonders of Montana. Whether you’re hiking the Seven Generations trail or soaking in the healing waters, this historic retreat promises an unforgettable experience.
Join us in discovering why Boulder Hot Springs was lovingly dubbed “Peace Valley” by the First Peoples, as it beckons everyone to experience the healing qualities of its natural hot springs. Plan your visit today and embark on a journey of relaxation and exploration unlike any other.
For more information and bookings, visit the Boulder Hot Springs website or call 406-225-4339.