June 2018 photo
| Registry Numbers | US 290, CA 23 (view other lookouts in United States, California) | 
| Date Registered | January 6, 1999 | 
| Nominated by | San Jacinto Ranger District | 
| Location | 
San Bernardino National Forest Riverside County, California  | 
            
| Coordinates | 
                            N 33° 37.808' W 116° 50.869' (view using Google Maps) N 33° 37' 49" W 116° 50' 52" N 33.630140° W 116.847815°  | 
            
| Elevation | 4,536 ft (1,383 m) | 
| Built | 1936 | 
| Administered by | U.S. Forest Service | 
| Cooperators | Southern California Mountains Foundation and the San Jacinto Ranger District | 
Completed in 1936, Red Mountain Lookout is also the oldest lookout on the San Jacinto Ranger District. The cabin is a 1934 standard 14’ x 14’ California Region 5 Plan BC-301 series wooden cab with catwalk atop a 20 foot steel H-brace tower with steel I-beam corner posts.
Now rehabilitated, it returned to service with volunteer Lookout Hosts in October 1998.
                                Cab in June 2018
                                Fire Finder in June 2018