Shop the Altoona High School Apparel Store for a wide selection of Mt. Lions merchandise, gear, sportswear and clothing. Whether you are a student, parent, teacher, alumni or team member, customized Altoona High School Mt. Lions clothing shows your pride and support when cheering on your favorite Football, Basketball, Baseball, Softball, Soccer or Lacrosse teams! Shop our School Store for your Mt. Lions Merchandise. Altoona High School is located in Altoona, Pennsylvania.