Zone D10, California

Per CDFW, the zone covers a large geographic area where "the terrain can be very steep and rugged." Major road access is from Interstate 5 and State Highways 58 and 138. CDFW notes deer may move toward lower elevation areas after heavy snow and recommends looking at "intermediate elevations," and that the resident Tejon herd undergoes elevation shifts seasonally; CDFW does not publish specific elevation figures in the zone information sheet, so exact elevation ranges are not stated here.

Zone D-10 is overwhelmingly private land (~97% per GoHunt/CDFW) and hunters without a ranch connection have essentially no foot-in-the-door. The unit is bounded by Interstate 5 on the west and southwest, SR-58 on the north, and SR-138/SR-99/SR-14 on the east and south — these highways frame the zone but do not provide interior public access. Tejon Ranch (~270,000 acres) dominates the unit; its primary entry is off I-5 at the Lebec Road exit (Wildlife Management Office: 4427 Lebec Rd, Lebec, CA 93243; 661-663-4210), and the ranch operates two paid-membership Hunt Club areas: a North area (~57,000 ac) and a South area (~76,000 ac), with cabin and camp accommodations (Vaquero Campground, Oso and Canary camps) for members. Fee-based guided deer hunts are also available directly through the ranch (hunt.tejonranch.com). Separately, Tejon Ranch participates in CDFW's Private Lands Management (PLM) program, offering a limited number of PLM deer tags with potential expanded seasons — check wildlife.ca.gov/Hunting/PLM for the current list of participating properties. BLM parcels (Bakersfield Field Office, 661-391-6000) exist within the zone but CDFW states most are landlocked by private holdings with no practical public road access; there are no developed public trailheads or campgrounds inside D-10. No National Forest land falls within this zone. Hunters with only a deer tag and no ranch or PLM arrangement will find the unit effectively inaccessible.

CDFW describes vegetation as "highly varied throughout Zone D-10 ranging from oak-woodland, mixed chaparral, juniper-pinyon, hardwood, hardwood-conifer and dense conifer to desert habitats." Vegetation can be extremely dense. Deer respond favorably to disturbances (wildfire, timber harvest) that enhance brush; riparian areas, recently burned/re-sprouted brush, and acorn-producing oaks are productive, while older decadent brushlands and dense forest hold lower densities.

The subspecies is California mule deer. Per CDFW, "The Tejon Deer Herd is primarily a non-migratory (resident) herd; however, shifts in elevation may occur during the year in response to weather and vegetation availability." After heavy snow, deer move to lower elevations. The population is "considered stable to declining," still well below late-1960s/1970s levels, with a long-term steady decline attributed to fire suppression producing more mature, less diverse habitat; short-term fluctuations track weather effects on forage. CDFW does not state rut dates in the zone sheet; a hunt-data source (HuntScore) states the rut can begin as early as late October and run through late December (note: secondary source).