Overview
The Desert Tortoise Natural Area (DTNA) is a federally designated preserve located a few miles northeast of California City in Kern County, California. Managed by the Bureau of Land Management (BLM), it protects one of the largest remaining populations of the Mojave desert tortoise (Gopherus agassizii), a threatened species under the Endangered Species Act.
Spanning roughly 39 square miles, the preserve is a largely undisturbed expanse of Mojave Desert scrubland, characterized by creosote bush, Joshua trees, bladderpod, and a variety of native grasses. A small interpretive center near the entrance provides context on tortoise biology and desert ecology, though visitors should verify current staffing and hours before arrival, as on-site services can be limited or seasonal.
The area is not a polished tourist attraction — it is a working conservation reserve. That means unpaved roads, minimal amenities, and an experience that rewards patient, low-impact visitors. It is an excellent choice for nature walkers, wildlife observers, and anyone wanting a genuine sense of the Mojave's quieter character.
Before You Go
Research Conditions in Advance
Conditions at the DTNA can vary significantly by season. Summer temperatures regularly exceed 100°F (38°C), making visits dangerous without serious preparation. Always check current conditions and any temporary closures with the BLM Ridgecrest Field Office before your trip.
No Fee, But Be Prepared
As of widely available information, there is no admission fee to enter the DTNA. However, verify this and any updated regulations on the official BLM website before visiting, as land-use policies can change.
What to Bring
- Water: Carry far more than you think you need — at least one gallon per person per day is a standard desert recommendation.
- Sun protection: Hat, sunscreen, and UV-blocking clothing are essential.
- Navigation: Cell service is unreliable. Download offline maps or bring a paper map.
- Spare tire and emergency supplies: Roads leading to and within the area are unpaved and can be rough.
- Leave No Trace supplies: Pack out all waste; there are no bins on-site.
Wildlife Interaction Rules
It is illegal to handle, harass, or disturb desert tortoises. If you encounter one on a road, you may carefully move it in the direction it was already traveling — but avoid picking it up unnecessarily, as stress can cause tortoises to void their water bladder, which can be fatal in drought conditions. Observe all posted regulations.
Getting There
The Desert Tortoise Natural Area is located off Randsburg-Mojave Road, northeast of California City. From California City Boulevard, visitors typically turn onto Randsburg-Mojave Road and follow BLM signage to the preserve entrance. A high-clearance vehicle is advisable, especially after rain, as unpaved sections can become soft or rutted.
The nearest commercial airports are Meadows Field Airport in Bakersfield (roughly 70 miles west) and Los Angeles International Airport (LAX), approximately 120 miles southwest. There is no public transportation to the DTNA; a personal or rental vehicle is required.
Mojave, California — about 20 miles southwest — is a practical last stop for fuel, food, and supplies before heading to the preserve. California City itself has limited services, so plan provisions before you arrive.
Getting Around
The DTNA has a network of unpaved dirt roads and informal trails. A short interpretive loop trail near the kiosk is accessible on foot and is suitable for most visitors. The loop is generally flat, but the surface is loose desert soil, so sturdy closed-toe shoes are strongly recommended.
Vehicle travel within the preserve is restricted to designated roads to protect tortoise habitat. Do not drive off-road. Walk slowly and watch the ground carefully — tortoises can be very difficult to spot, particularly when partially buried or sheltering under shrubs.
There is no shuttle, guide service, or bike rental on-site. All exploration is self-directed.
Things to See & Do
Wildlife Observation
Spotting a wild Mojave desert tortoise is the primary draw. Tortoises are most active in the morning during spring and fall; in summer they retreat underground to estivate, and in winter they hibernate. Patience and quiet movement yield the best results. The preserve is also home to Mojave sidewinders, kit foxes, black-tailed jackrabbits, various lizard species, and a range of desert birds including Le Conte's thrasher and loggerhead shrike.
Wildflower Season
After sufficient winter rain, the DTNA and surrounding Mojave can produce striking wildflower displays between late February and early May. Phacelia, desert dandelion, golden gilia, and blazingstar are among species that may bloom. Bloom intensity varies dramatically year to year — check regional wildflower reports before visiting for current conditions.
Interpretive Kiosk and Education
A small kiosk near the entrance provides educational panels about tortoise ecology, conservation history, and desert plant communities. It is a useful starting point even for experienced desert visitors.
Photography
The open desert landscape, wide skies, and possibility of tortoise encounters make the area attractive to nature photographers. Early morning and late afternoon light are best. Astrophotography is also possible given the low light pollution in the area.
Practical Information
Contact and Information
The BLM Ridgecrest Field Office oversees the DTNA. Verify current access, hours, and any closures directly with BLM before your visit — search for the BLM California DTNA page on the official BLM website (blm.gov).
Facilities
Facilities are extremely limited. There are pit toilets at or near the preserve entrance, but no running water, no food vendors, and no electricity. Do not count on cell service for navigation or emergency calls.
Emergencies
In an emergency, the nearest significant medical facility is in Mojave or Tehachapi. Kern County Sheriff's Department covers this area. Carry a charged phone and consider a personal locator beacon (PLB) for remote desert travel.
Camping
Dispersal camping may be permitted on adjacent BLM land outside the core preserve — verify current rules with the Ridgecrest Field Office. There is no developed campground within the DTNA itself.
Pets
Pets must be kept on a leash at all times to protect wildlife. Be aware that the hot desert ground can burn paw pads rapidly in warm months.
Safety
Desert heat is the primary hazard at the DTNA. Even in spring and fall, midday temperatures can be high. Plan hikes for early morning, carry significantly more water than you expect to use, and know the signs of heat exhaustion and heatstroke.
Venomous wildlife is present, including Mojave rattlesnakes and black widow spiders. Watch where you step and where you place your hands — never reach into rock crevices or dense shrub without looking first. Scorpions may shelter under rocks or debris.
The area is remote, and unpaved roads can become impassable after rain. Let someone know your itinerary before heading out. A full spare tire and basic recovery equipment (tow strap, shovel) are sensible precautions.
