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Angeles National Forest in Los Angeles County, California — The American West (Pacific Coastal)
 

Slide Mountain Lookout

— Built 1969 —

 
 
Slide Mountain Lookout Marker image. Click for full size.
Photographed by Craig Baker
1. Slide Mountain Lookout Marker
Inscription.
National Historic Lookout Register
This certificate officially recognizes Slide Mountain Lookout, Los Angeles County, California, as meeting those standards of historic and cultural significance established by the American Resources Group, Washington, D.C., in cooperation with the Forest Fire Lookout Association, the National Forestry Association, State Historic Preservation Officers, and State and Federal forestry agencies.
Accepted for listing this 3rd day of September, 2014.
In cooperation with: Angeles National Forest Fire Lookout Association.
Built in association with the construction of Pyramid Reservoir in 1969, Slide Mountain is a live-in 14'x14' CI-100 cab atop an enclosed 10' metal tower. Located high on the east end of Dome Mountain, it has extensive views of the I-5 corridor and the Sespe Wilderness. It is staffed by volunteers from the Angeles National Forest Fire Lookout Association.

This site listed on the National Historic Lookout Register, a national register recognizing fire lookout sites, structures and towers with historic and cultural significance to forest fire detection in order to promote their protection.
Maintained in cooperation with federal, state, and private forestry agencies and landowners throughout the United
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States.
 
Topics. This historical marker is listed in these topic lists: CommunicationsEnvironmentHorticulture & ForestryParks & Recreational Areas. A significant historical year for this entry is 1969.
 
Location. 34° 37.976′ N, 118° 46.667′ W. Marker is in Angeles National Forest, California, in Los Angeles County. It can be reached from Slide Peak Trail 4 miles west of Old Route 99. It is a strenuous five mile hike from Frenchman’s Flat to the lookout, with 2,500 feet of altitude gain. Touch for map. Touch for directions.

Regionally, this marker is in Greater Los Angeles and in the Transverse Ranges. It is also on the American Pacific Coast. Globally, it is in North America, on the Ring of Fire, in the Pacific Rim, in the Western Hemisphere, in the Western World, and in the Anglosphere. Historically, it finds itself in what was once New Spain and also Mexico’s Alta California.

Other nearby markers. At least 8 other markers are within 7 miles of this marker, measured as the crow flies: Castaic Powerplant (approx. 2.2 miles away); The “Ridge Route” (approx. 2.3 miles away); Swede’s Cut (approx. 3.2 miles away); Reservoir Summit (approx. 3.6 miles away); Kelly’s Halfway Inn (approx. 4.4 miles away); National Forest Inn (approx. 4½ miles away); Ridge Route Directory (approx. 5.8 miles away); Tumble Inn (approx. 6.1 miles away). Touch for a list and map of all markers in Angeles National Forest.
 
Regarding Slide Mountain Lookout. The lookout is only open on days when volunteers are available.
 
Also see . . .
1. Angeles National Forest Fire Lookout Association. Organization of volunteers who staff this and other local fire lookouts. (Submitted on May 11, 2025.)
Slide Mountain Lookout Marker image. Click for full size.
Photographed by Craig Baker
2. Slide Mountain Lookout Marker
 

2. National Historic Lookout Register. Listing in the National Historic Lookout Register is often a first step towards nomination to the National Register of Historic Places. Sometimes necessary structural modifications preclude listing in the latter register, and the only appropriate recognition given to these historic lookout sites is that afforded by the NHLR. There are over 1,700 U.S. lookouts on the register. (Submitted on May 11, 2025.) 
 
Slide Mountain Lookout image. Click for full size.
Photographed by Craig Baker
3. Slide Mountain Lookout
Slide Mountain Lookout image. Click for full size.
Photographed by Craig Baker
4. Slide Mountain Lookout
Lookout Cabin Interior image. Click for full size.
Photographed by Craig Baker
5. Lookout Cabin Interior
View of Pyramid Lake image. Click for full size.
Photographed by Craig Baker
6. View of Pyramid Lake
View of Pyramid Lake image. Click for full size.
Photographed by Craig Baker
7. View of Pyramid Lake
 
 
Credits. This page was last revised on November 7, 2025. It was originally submitted on May 11, 2025, by Craig Baker of Sylmar, California. This page has been viewed 212 times since then and 33 times this year. Photos:   1, 2, 3, 4, 5, 6, 7. submitted on May 11, 2025, by Craig Baker of Sylmar, California.
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Jun. 28, 2026