Gigantic Warm Springs
Swimming hole in Lewiston, Montana · Spring
Visit the family-owned Gigantic Warm Springs in Montana for a natural warm water swim. Find directions, fees, and tips for a safe, relaxing day trip.
About Gigantic Warm Springs
Tucked into the wide-open Montana countryside near the small city of Lewistown, Gigantic Warm Springs lives up to its name in the best possible way. This family-owned swimming area offers something rare in a state celebrated for its icy glacier-fed streams and frigid mountain lakes: water that is genuinely, naturally warm. Here, thermal spring water wells up from the earth and fills a spacious swimming area, creating an inviting oasis that draws visitors from the surrounding plains towns of Lewistown, Denton, and Brooks throughout the year.
The Setting
Montana's central heartland stretches out in every direction — golden grasslands, big sky, and the kind of quiet that reminds you how vast the American West truly is. The grounds at Gigantic Warm Springs have a relaxed, unpretentious character that fits perfectly into this landscape. Picnic tables dot the area, and a volleyball court gives families and groups somewhere to burn off energy between dips. The atmosphere is community-minded and unhurried: think lazy summer afternoons, the smell of grass warming in the sun, and the distant sound of kids splashing in water that shouldn't feel this warm this far north.
The Swimming Experience
What makes this place genuinely special is the water itself. Fed by natural thermal springs, the swimming area stays warm year-round — a remarkable contrast to the cold streams and reservoirs that define most Montana swimming. You'll step in and feel the comfortable, enveloping warmth wrap around you almost immediately. Because this is a spring-fed system, the water carries that clean, mineral-fresh quality you don't get at a municipal pool or a stagnant pond. Whether you're floating on your back watching the big Montana sky, or wading with young children who might balk at colder water, the temperature makes Gigantic Warm Springs accessible and genuinely pleasurable across a wide range of visitors and seasons.
Practical
The experience
- Best time to visit Summer months (June-August) for warm weather; Spring and Autumn for cooler air and tranquil surroundings; Winter for a serene escape.
- Access Easy access with clear signage; no hiking required.
- Facilities Basic amenities include toilets and picnic tables; no camping allowed at the site.
- Camping nearby None at site.
Highlights & features
- Year-round warm water swimming
- Picnic tables and volleyball court
- Easy access from nearby towns
- Scenic views and photography opportunities
- Historical landmarks nearby
- Warm thermal waters in a state known for colder streams
- Proximity to Lewistown’s historical sites
- Combination of swimming and recreational activities
How to get there
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Starting Point: Lewiston, MT
Begin your journey in Lewiston, MT. Head north on Route 191 for approximately 9.5 miles. You will pass through scenic countryside as you approach the small community of Brooks. Once you reach Brooks, turn west (left) onto Route 81. Continue on Route 81 for about 5 miles. Keep an eye out for road signs and landmarks along the way. After approximately 5 miles on Route 81, look for a sign indicating Warm Springs Lane. Turn right onto Warm Springs Lane. Follow Warm Springs Lane to its end, where you will find parking available near the swimming hole. The parking area is typically unpaved but spacious enough to accommodate visitors. From the parking area, a short and easy trail leads directly to Gigantic Warm Springs. The trail is well-marked and accessible, making it easy to reach the swimming hole.
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Additional Notes
The swimming hole is a natural warm spring, offering a relaxing and scenic experience. Please ensure you pack out all trash and respect the environment. Cell service may be limited in the area, so it’s recommended to save or print directions in advance. There are no facilities at the site, so plan accordingly for food, water, and restroom needs. Enjoy your visit to Gigantic Warm Springs!
Plan your visit
Gigantic Warm Springs is most easily reached from Lewistown , the largest nearby hub, which offers grocery stores, fuel, and dining options to round out your day. The smaller communities of Denton and Brooks are also in the vicinity. Summer months bring the longest days and the liveliest atmosphere, but spring and autumn offer a quieter, more contemplative visit — and the warm water makes off-season swimming entirely viable. However you time your trip, this tucked-away Montana thermal spring rewards visitors who seek out the genuine and the unexpected.
Gigantic Warm Springs is most easily reached from Lewistown , the largest nearby hub, which offers grocery stores, fuel, and dining options to round out your day. The smaller communities of Denton and Brooks are also in the vicinity. Summer months bring the longest days and the liveliest atmosphere, but spring and autumn offer a quieter, more contemplative visit — and the warm water makes off-season swimming entirely viable. However you time your trip, this tucked-away Montana thermal spring rewards visitors who seek out the genuine and the unexpected.
Access & fees
Access involves a short, easy trail from the parking area. The site is family-owned with an entrance fee (last reported ~$3.00 in 2012; current rate unknown). Facilities include basic toilets and picnic tables. No on-site concessions; pack all food, water, and supplies. Cell service is limited.
Access involves a short, easy trail from the parking area. The site is family-owned with an entrance fee (last reported ~$3.00 in 2012; current rate unknown). Facilities include basic toilets and picnic tables. No on-site concessions; pack all food, water, and supplies. Cell service is limited.
Frequently asked questions
Is GIGANTIC WARM SPRINGS free to visit?
GIGANTIC WARM SPRINGS may require a fee or pass. Reported fee: Yes, about $3.00 in 2012. Fees and hours change seasonally — verify current pricing with the managing agency before your visit.
Is swimming allowed at GIGANTIC WARM SPRINGS?
Yes, GIGANTIC WARM SPRINGS is an officially sanctioned recreation area where swimming is permitted. Reported activities include: Swimming, picnicking, volleyball. Always respect posted closures and seasonal restrictions.
What type of swimming spot is GIGANTIC WARM SPRINGS?
GIGANTIC WARM SPRINGS is a family owned, huge warm spring swimming area. on Warm Springs located in MT, near LEWISTON. Visit the family-owned Gigantic Warm Springs in Montana for a natural warm water swim. Find directions, fees, and tips for a safe, relaxing day trip.
When is the best time to visit GIGANTIC WARM SPRINGS?
The best time to visit GIGANTIC WARM SPRINGS is Summer months (June-August) for warm weather; Spring and Autumn for cooler air and tranquil surroundings; Winter for a serene escape.. Water levels, clarity, and temperature vary with recent weather — always check conditions before going, especially after rain or snowmelt.
What facilities are available at GIGANTIC WARM SPRINGS?
Reported facilities at GIGANTIC WARM SPRINGS include: Basic amenities include toilets and picnic tables; no camping allowed at the site.. Amenities can change — contact the managing agency or check recent visitor reports to confirm current availability.
Is camping available near GIGANTIC WARM SPRINGS?
None at site.
Nearby swimming holes
Map & location
Culture & history
Located near Lewistown, a historical town from Montana’s gold rush era, adding a layer of heritage to the visit.
Conservation
Follow Leave No Trace principles. Ensure trash is packed out and wildlife remains undisturbed.