Mount Wire (also known as Wire Mountain or Big Beacon) is a mountain located on the east side of Salt Lake City, Utah and is 7,137 feet (2,175 m) above sea level. The mountain is named after Lester Wire, an American policeman of Salt Lake City, Utah, who in 1912 developed the first red-green electric traffic light. Mount Wire is a common spot for adventurous hikers and has many access trails, some created by nearby Red Butte Gardens. The east side of the University of Utah offers direct access to trails to the summit. Mount Wire formerly could be identified from other nearby mountains by its two passive microwave repeaters near the summit. These billboard like structures were used to bounce microwave signals over the mountain to the north-eastern parts of Utah. Mount Wire also houses an old airway beacon directly on the summit. An interesting man-made rock outcropping about halfway up the mountain looks like several lawn chairs in a row, and is a common rest stop for hikers.