Is there an entrance fee for Castle Mountains National Monument?

NPS lists it as a fee-free park with no entrance fee. Confirm on the official park page before your trip.

When is Castle Mountains National Monument open?

NPS says it is open year-round.

Are dogs allowed at Castle Mountains National Monument?

NPS rules require pets to be in a crate or cage, or on a leash of six feet or shorter, where pets are allowed. Each park can close more areas to pets.

Are there facilities at Castle Mountains National Monument?

NPS says there are no facilities in the Monument. The visitor centers at nearby Mojave National Preserve can give orientation.

All parks › Castle Mountains National Monument

Castle Mountains National Monument: fees, hours, camping and when to visit

Updated October 30, 2026. Based on National Park Service data. Published by Humblebee.

Entrance fee: None^[1]

Castle Mountains National Monument is a unit of the National Park System in California^[2]. NPS lists it as a fee-free park with no entrance fee^[1].

Entrance fees and passes

The National Park Service lists no entrance fee for Castle Mountains National Monument^[1]. Some tours, campgrounds or permits inside a park can still have their own fees.

When to visit and hours

NPS says the Monument is open year-round^[3]. There are no facilities in the Monument, and the visitor centers in neighboring Mojave National Preserve offer information and orientation^[3]. In winter, NPS expects freezing temperatures and some snow now and then^[4]. In spring, NPS describes mild days and cooler nights^[4]. In summer, NPS describes temperatures nearing 100 degrees Fahrenheit^[4]. NPS warns that heavy storms late in summer can flood low areas and make roads hazardous^[4].

Pets and dogs

Under the NPS pet rule, a pet must be in a crate or cage, or on a leash of six feet or shorter at all times, in areas where pets are allowed^[5]. Pets are barred from public buildings, public transportation and designated swimming beaches, and service animals are an exception^[5]. Each park can close more areas to pets, so check with the park before bringing a dog^[5].

Before you go

NPS lists no entrance fee here, but fees and hours can change, so confirm on the official park page before you go^[1].
No facilities are listed in the Monument, so plan for that^[3].
Mojave National Preserve visitor centers next door provide information^[3].
Check the weather first, since late summer storms may make roads hazardous^[4].

Questions people ask

Is there an entrance fee for Castle Mountains National Monument?: NPS lists it as a fee-free park with no entrance fee^[1]. Confirm on the official park page before your trip.
When is Castle Mountains National Monument open?: NPS says it is open year-round^[3].
Are dogs allowed at Castle Mountains National Monument?: NPS rules require pets to be in a crate or cage, or on a leash of six feet or shorter, where pets are allowed^[5]. Each park can close more areas to pets^[5].
Are there facilities at Castle Mountains National Monument?: NPS says there are no facilities in the Monument^[3]. The visitor centers at nearby Mojave National Preserve can give orientation^[3].

Facts and sources

NPS lists Castle Mountains National Monument as a fee-free park: there is no entrance fee. National Park Service
Castle Mountains National Monument is a unit of the U.S. National Park System (designation: National Monument) in California. National Park Service
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. National Park Service
NPS weather and seasons overview for Castle Mountains National Monument. National Park Service
National Park Service rule 36 CFR 2.15: where pets are allowed they must be crated, caged or on a leash no longer than six feet at all times, and pets are not allowed in public buildings, on public transportation or on designated swimming beaches (service... eCFR, 36 CFR 2.15

Fees and hours are what NPS lists in its data at the snapshot date. They change: tell readers to confirm on the official park page before a trip. Visits are NPS recreation visits (counted entries, not unique people). Use them only for this park's own months and years, never to rank parks. Campground list and site counts come from NPS and Recreation.gov records. Count fields can differ slightly between the two. The pet rule is the national baseline (36 CFR 2.15). The park may close more areas to pets. Do not claim specific trails allow dogs unless a fact says so.