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| El Mirage Natural Preserve | |
|---|---|
| Name | El Mirage Natural Preserve |
| Location | Mojave Desert, San Bernardino County, California, United States |
| Area | 7,500 acres |
| Established | 1998 |
| Governing body | Bureau of Land Management |
El Mirage Natural Preserve is a protected dry lakebed and surrounding desert unit in the western Mojave Desert of San Bernardino County, California, United States, designated to conserve arid landforms, Native American cultural sites, and unique recreational values. The preserve lies near Lancaster, California, Victorville, California, and the Antelope Valley, and is managed to balance off‑highway vehicle use, scientific research, and habitat protection. It is noted for its expansive playa, ephemeral hydrology, and role within larger conservation networks such as the Mojave Desert National Scenic Trail and regional land management plans administered by the Bureau of Land Management.
The preserve occupies a closed‑basin alkali playa within the western Mojave Desert, adjacent to El Mirage Dry Lake and abutting public lands near the San Gabriel Mountains foothills, the Antelope Valley California Poppy Reserve, and the Angeles National Forest. It functions as a matrix element in the Mojave Desert ecosystem, contributing to connectivity between Sierra Pelona Mountains habitats, Tehachapi Mountains corridors, and rangelands used historically by Kitanemuk and Serrano peoples. Administratively, it is part of the Barstow Field Office portfolio and is cited in regional plans such as the California Desert Conservation Area Management Plan.
The preserve sits atop a playascape formed by late‑Pleistocene lacustrine deposits linked to paleolakes that once occupied the Antelope Valley Basin and broader Great Basin margin. Its geomorphology includes broad, flat playa surfaces underlain by evaporitic salts and silts, bordered by alluvial fans sourced from the San Gabriel Mountains and Sierra Pelona Mountains. Surficial sediments record episodic flooding events comparable to terraces identified at Lake Manix and remnant shorelines found near Ridgecrest, California. Structural context reflects basin‑and‑range extension associated with the San Andreas Fault system and subsidiary faults mapped by the United States Geological Survey. The preserve’s soils support halophytic crusts and windblown deflation hollows similar to features in the Mojave National Preserve and the Death Valley National Park region.
Vegetation is characteristic of the Mojave Creosote Bush Scrub and saltbush communities, with stands of Larrea tridentata interspersed with Atriplex species and seasonal blooms akin to those in the Antelope Valley California Poppy Reserve during favorable precipitation years. Fauna includes obligate desert specialists such as the Mojave ground squirrel, desert tortoise, kit fox, Burrowing owl, and migratory shorebirds that use ephemeral wetlands comparable to those at Soda Lake (Kern County). Arthropod assemblages and endemic invertebrates exploit playa microhabitats similar to taxa described from the Providence Mountains State Recreation Area. Community dynamics are influenced by episodic flooding, salt crust formation, invasive species pressures documented in the California Invasive Plant Council assessments, and climate trends identified by NOAA and the Intergovernmental Panel on Climate Change.
Archaeological records associate the area with prehistoric and historic use by the Kitanemuk, Serrano, and Tataviam peoples, including lithic scatters, projectile points, and seasonal procurement sites analogous to finds at Fort Tejon and Antelope Valley Indian Museum State Historic Park. Historic trails and transportation corridors linked the locale to the El Camino Viejo, Mormon Road, and later Southern Pacific Railroad routes that shaped settlement in Lancaster, California and Victorville, California. Twentieth‑century history includes aviation and aerospace testing proximities tied to facilities near Edwards Air Force Base and Palmdale, California, as well as recreational development associated with the off‑highway vehicle community and events recorded in regional newspapers such as the Los Angeles Times.
Public use emphasizes low‑impact recreation, sanctioned off‑highway vehicle areas, and interpretive opportunities coordinated with partners like the Bureau of Land Management, California Department of Fish and Wildlife, and local San Bernardino County stakeholder groups. Trailheads and designated access points connect to regional routes used by visitors from Lancaster, California, Palmdale, California, and the Antelope Valley; activities include wildlife observation, amateur paleontology consistent with Society of Vertebrate Paleontology collecting guidelines, and seasonal birding linked to networks such as the Audubon Society. Regulations reflect protective measures developed under federal statutes including the National Environmental Policy Act and administrative planning by the Bureau of Land Management.
Management priorities integrate habitat conservation for listed taxa like the Mojave ground squirrel and desert tortoise with sustainable recreation planning, invasive species control informed by California Invasive Plant Council protocols, and archaeological site protection aligned with the National Historic Preservation Act and collaboration with affiliated tribal governments. Fire management, groundwater monitoring, and climate resilience strategies reference interdisciplinary guidance from the United States Geological Survey, National Park Service research, and regional conservation coalitions such as the Desert Renewable Energy Conservation Plan. Adaptive management uses monitoring data from partner institutions including the California Department of Fish and Wildlife and academic researchers at institutions like the University of California, Riverside and the University of California, Los Angeles.
Category:Protected areas of San Bernardino County, California Category:Mojave Desert