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Summit

Castle Rock

California

About

Castle Rock is a summit of 7,420 feet in the Mountaintop Ranger District of San Bernardino National Forest in California, about 4 miles from the town of Big Bear Lake. Summer is the most comfortable time to visit. Typical averages from a nearby weather station in Big Bear Lake show July highs around 80°F with lows near 50°F, and the summit sits a few hundred feet higher than that station, so expect it to run a little cooler. The Castle Rock Area climbing area and the (a) Castle Rock - Southwest Face route both lie about 0.1 mile away. Bluff Mesa Group Camp is under a mile off, and Big Bear Lake offers fishing about 1.2 miles away.

Summit Facts

Summit elevation

7,420 ft

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

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Location

Castle Rock

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: May–Oct. The mildest months here, with typical highs of 63–80°F and lows of 35–50°F.

Typical monthly averages (not a forecast) from the Big Bear Lake, CA weather station, 2.7 mi away. High / low in °F.

  1. Jan46° high24° low
  2. Feb46° high24° low
  3. Mar51° high27° low
  4. Apr57° high31° low
  5. May66° high37° low
  6. Jun75° high43° low
  7. Jul80° high50° low
  8. Aug79° high49° low
  9. Sep73° high44° low
  10. Oct63° high35° low
  11. Nov53° high28° low
  12. Dec46° high24° low

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

Where it is

Nearest town
Big Bear Lake, California · 4 mi

Source: USFS EDW boundaries; USGS GNIS populated places

Conditions

Active alerts for Mountaintop Ranger District as of Oct 9, 2026:

Source: USFS forest alerts

Nearby

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

    Castle Rock — Summit in California | Roamze