Missoula has three prominent hillside symbols: an "M" for the University of Montana, an "L" for Missoula Loyola Sacred Heart High School and a peace sign. The letters are often decorated on special occasions and to make political statements. The "M," located on Mount Sentinel, is easily accessible via a trail from the UM campus. The "L," located on Mount Jumbo, is accessible via its own series of trails. The peace sign, located on a hill on the east side of Interstate 90, is accessible via the Waterworks Hill Trail and North Hills Trails network.