Basic Information

Weather at Castle Mountains changes with the seasons. Freezing temperatures are expected in winter, with occasional snow. Spring brings mild warm days and cooler nights. With enough rain, wildflowers can carpet the area, making for spectacular displays. Summer months are much hotter, with temperatures nearing 100 degrees Fahrenheit. Strong monsoonal storms in late summer may cause flash-flooding in low-lying areas and can create hazardous road conditions. Fall is a cooler respite after the heat of summer.

Entrance Fees:

Castle Mountains Entrance Fee - $0.00

There are no fees to enter Castle Mountains National Monument.

Entrance Passes:

Castle Mountains Pass - $0.00

Castle Mountains is a fee free area.


Welcome to Castle Mountains National Monument!

Here you can find information on:

Operating Hours & Seasons
Fees & Passes
Directions & Transportation
Weather & Road Conditions

Last updated: March 3, 2016

Contact the Park

Mailing Address:

Castle Mountains National Monument
2701 Barstow Road

Barstow, CA 92311


(760) 252-6100

Contact Us