Unit D16

Key navigation features include the Carrizo Badlands and surrounding valleys (Yuha Basin, Blair Valley) in the eastern desert section—distinctive terrain for orientation and glassing. The Superstition Mountains and Fish Creek Mountains provide ridge systems for surveying surrounding country. Westward, Palomar Mountain and the San Marcos Mountains offer elevated vantage points.

Lower Borrego Valley and several named flats (Indian Flats, Clover Flat) serve as recognizable reference points. Sweeney Pass, Dulzura Summit, and Sunshine Summit are notable saddles. The Second San Diego Aqueduct runs through central sections as a linear landmark.

Coastal features—Point Loma, Ballast Point, and various beach access points—orient western sections, though this region sees heavy urban pressure.

Nearly 88% of the unit sits below 5,000 feet, with a median around 1,280 feet, making this decidedly low-elevation country. The coastal western portion features narrow beaches, bluffs, and lagoon margins; moving inland, terrain opens into coastal sage scrub and grassland plains—the majority of the unit's area. Eastern sections transition into badlands topography and scattered desert mountains including the Superstition Hills, Fish Creek Mountains, and Jacumba ranges, though even these peaks don't exceed 6,500 feet.

Forest is minimal throughout; what little exists clusters around scattered canyons and higher elevations. Most of the landscape is open country—shrubland, sparse desert vegetation, and exposed rock.

Road density is high at 3.07 miles per square mile, indicating well-connected infrastructure, but this cuts both ways. Major highways (1,470 miles) and secondary roads (3,320 miles) provide easy access to many areas, bringing hunter pressure and also fragmenting habitat with development. However, nearly 48% public land is interspersed with 52% private, creating a complicated checkerboard that limits actual huntable area.

Military reservations (Miramar, Camp Morena, Warner Springs, Naval installations) close additional acreage. Coastal and near-coastal sections suffer from urban sprawl and high pressure. Eastern badlands and desert mountains see less pressure simply because access to public land parcels requires more planning.

Staging from Ranchita, Hidden Meadows, or small desert communities toward the east provides better access to less-pressured country.

D16 covers roughly 4,500 square miles across San Diego County, making it one of California's larger coastal units. The unit sprawls from the Pacific shoreline eastward into the Anza-Borrego Desert region, encompassing everything from ocean bluffs and lagoons to inland badlands and scattered desert mountains. This creates a highly diverse but complicated patchwork—marine habitats transition quickly to coastal sage scrub, then to chaparral and open desert as you move inland.

Military installations, substantial private holdings, and numerous populated areas cut through the unit, creating numerous access constraints that hunters must navigate carefully.

Water is moderate but scattered. Major drainages include Tarantula Wash, Pechanga Creek, and Walker Creek, though many are seasonal in this semi-arid region. Named springs (Blackwater Hole, Government Springs, Pechanga Hot Springs, Agua Caliente Springs) exist but are widely dispersed.

Reservoirs—Lake Poway, Lake Hodges, Lake Miramar—provide reliable water but fall within or near developed areas and may have access restrictions. Coastal lagoons (San Dieguito Lagoon, Batiquitos Lagoon) and bays mark the western boundary but aren't hunting resources. The Yuha Desert region in the east is notably drier; hunters there must plan water sources carefully.

Seasonal creeks in canyon bottoms may flow during winter and spring but dry by summer.

D16 supports mule and white-tailed deer, primarily adapted to low-elevation scrub, chaparral, and desert environments. Early season (late summer/fall) finds deer in higher canyon bottoms and scattered mountains as they move toward water. The coastal sage scrub and badlands provide cover, but open terrain makes glassing essential—identify key ridges and valleys first, then work toward water sources and dense brush cover.

Midseason hunting benefits from cooler temperatures pushing deer to lower elevations and more active movement. Late season concentrates deer near remaining water and green forage. The fragmented public/private ownership pattern means scouting beforehand and understanding which parcels are open is critical; don't waste time on inaccessible land.

Focus on eastern sections (badlands, desert mountains) for less pressure. Western coastal areas are heavily developed and less viable. Spring and seeps are limited, so water sources become strategic hunting points.