Red rocks frame a stand of Joshua trees and sage brush.

National Monument · California

Castle Mountains National Monument

Castle Mountains represents some of the most unique elements of the Mojave Desert. Nestled between the Nevada state line and Mojave National Preserve, the nearly 21,000 acres of Castle Mountains boasts Joshua tree forests, unbroken natural landscapes, rare desert grasslands, and rich human history. This intriguing area provides serenity and solitude from nearby metropolitan areas.

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Things to do

  • Camping
  • Car or Front Country Camping
  • Group Camping
  • RV Camping

Weather & when to go

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.

Operating hours

Castle Mountains

Castle Mountains National Monument is open year-round. There are no facilities in the Monument. Visitor Centers in neighboring Mojave National Preserve provide information and orientation.

FAQ

Is Castle Mountains National Monument free to visit?
Castle Mountains National Monument does not charge a standard entrance fee. Check the official NPS page for the latest details on any activity or permit fees before you go.
What are the hours at Castle Mountains National Monument?
Castle Mountains National Monument is open year-round. There are no facilities in the Monument. Visitor Centers in neighboring Mojave National Preserve provide information and orientation.
Do I need a reservation for Castle Mountains National Monument?
No timed-entry reservation is currently required to enter Castle Mountains National Monument. Campgrounds and permits may still need to be booked separately on Recreation.gov.