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MAC

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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.

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About Us

Forge Your Fitness Gym and CrossFit Adventures

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 2,500 members. We are a full-service facility with world-class trainers and instructors.

We pride ourselves in exemplary service and strive to meet the need of each member and guest. Come be a part of our family and enjoy all we offer. What’s keeping you from getting fit?

woman in red sports bra and black and gray shorts exercising on black exercise equipment

Our Services

Services & Programs

Full-Service Fitness Facility

Access top-tier equipment, expert trainers, and diverse classes under one roof.

Personalized Training Programs

Work with world-class trainers to create custom plans tailored to your goals.

Community-Driven Wellness

Join a vibrant community with over 2,500 members and a legacy of growth since 1991.

Full-Service Fitness Facility

Access top-tier equipment, expert trainers, and diverse classes under one roof.

Personalized Training Programs

Work with world-class trainers to create custom plans tailored to your goals.

Community-Driven Wellness

Join a vibrant community with over 2,500 members and a legacy of growth since 1991.

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.

© 2026 Montana Athletic Club | Bigfork MT | (406) 837-2582.