Mount Fremont Fire Lookout, Fire lookout tower in Mount Rainier National Park, US

Mount Fremont Fire Lookout is an observation tower in Mount Rainier National Park situated at about 7,200 feet elevation, with a two-story design featuring a balconied observation level and lower storage space. The structure provides all-around views of surrounding mountains and forests from its high-altitude location.

Built in 1933, the lookout was designed by the National Park Service Branch of Plans and Designs under acting chief architect Edwin A. Nickel, with construction assistance from the Emergency Conservation Works Association. It was listed on the National Register of Historic Places on March 13, 1991, and is part of the Mount Rainier National Historic Landmark District. A 2006 storm badly damaged it, along with Gobbler's Knob Fire Lookout; both have since been repaired.

The lookout is one of four fire lookouts still standing in Mount Rainier National Park and serves visitors on summer weekends. It belongs to the Mount Rainier National Historic Landmark District, designated on 18 February 1997, which covers the whole park and its Park Service rustic architecture.

The location is accessible via a hiking trail of about 9 kilometers round trip from the Sourdough Ridge Trailhead, with elevation gain through mountain meadows and rocky terrain. The best visiting season is summer when snow has melted and trails are fully passable.

Steel cables are attached to ground anchors to stabilize the structure against strong mountain winds and maintain the tower's integrity under extreme conditions. This engineering solution shows how builders addressed the specific challenges of a high-altitude alpine setting.