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Summit

Slide Mountain

California

About

Slide Mountain is a summit of 4,625 feet in the Los Angeles Gateway Ranger District of Angeles National Forest in California, about 12 miles from the community of Hasley Canyon. Spring and fall are the most comfortable times to go. Typical averages from a nearby weather station at a similar elevation show May highs around 70°F and October highs around 71°F, while July and August average highs near 88°F. The Slide Mountain Trail starts about half a mile away, and the Beartrail Trail is about a mile off. Pyramid Lake - Los Alamos Campground and Pyramid Lake - Emigrant Landing Day Use Area are both about 1.3 miles away.

Summit Facts

Summit elevation

4,625 ft

Elevation from USGS 3D Elevation Program terrain data (about 10 m resolution).

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Location

Slide Mountain

California

Name and location: U.S. Geological Survey, Geographic Names Information System (GNIS). Elevation: USGS 3D Elevation Program. View the GNIS record.

Facts about this place

When to go

Best time to go: Apr–Jun. The mildest months here, with typical highs of 62–80°F and lows of 43–58°F.

Typical monthly averages (not a forecast) from the Sandberg, CA weather station, 8.2 mi away. High / low in °F.

  1. Jan52° high39° low
  2. Feb53° high38° low
  3. Mar57° high41° low
  4. Apr62° high43° low
  5. May70° high49° low
  6. Jun80° high58° low
  7. Jul88° high65° low
  8. Aug88° high65° low
  9. Sep83° high61° low
  10. Oct71° high52° low
  11. Nov60° high44° low
  12. Dec52° high38° low

Source: NOAA NCEI U.S. Climate Normals 1991–2020

Where it is

Nearest town
Hasley Canyon, California · 12 mi

Source: USFS EDW boundaries; USGS GNIS populated places

Conditions

Active alerts for Angeles National Forest as of Oct 9, 2026:

Source: USFS forest alerts

Nearby

Source: Roamze catalog (indexable pages within 10 miles, PostGIS distance)

    Slide Mountain — Summit in California | Roamze