MAC
Fitness On Demand
All of our studios have the state-of-the-art system, Fitness on Demand,
where you can choose between literally hundreds of fitness classes. Click on the link for more information.
At Montana Athletic Club, we’re redefining fitness. From personalized programs to group classes and expert support, we balance challenges with care to ensure your success every step of the way.
Fitness on demand is available at all locations.
Ask your concierge for more details.
South Fork
Middle Fork
North Fork
New Online Gift Cards
Give the gift of health! Buy gift cards or anyone on your list!
Discounted Guest Pass
Trying It All For Yourself
InBody
Find Out What You’re Made Of
Try A New Class
See Our Class Schedule
MyZone
#EffortRewarded
The Montana Athletic Club was built as a partnership between Doug Mahlum and Jack Tawney in 1991 at 17,000 SF and had 600 members. Today, the MAC is at 32,000 SF with 3,000 members. We are a full-service facility with world-class trainers and instructors.
Quick Links
Legal
Contact Info
© 2026 Montana Athletic Club | Bigfork MT | (406) 837-2582.