The Mountain Athletic Conference (MAC[1][failed verification] or simply Mountain Conference)[citation needed] is a high school athletic conference with the Pennsylvania Interscholastic Athletic Association (PIAA)[2][failed verification] located in the state of Pennsylvania.
The conference is located primarily in the central region of the state.
Most of the conferences 9 member schools are located in District 6 of the PIAA, except for Clearfield Area Junior/Senior High School which is a member of District 9, but competes in District 6 athletic competitions.
The MAC consists of the Pennsylvania counties of Bedford, Blair, Centre, Clearfield and Huntingdon.