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| AVAC Kings Canyon Site |  | | Observing site of The Antelope Valley Astronomy Club. |
| Afton Canyon Campground |  | | campground near Interstate 15 along the Mojave River between Barstow and Baker. |
| Alpine |  | | |
| Amboy Crater |  | | Centered on the parking lot of Amboy Crater, a public nature site near the town of Amboy. |
| Anaheim |  | | |
| Angelus Oaks Heliport |  | | |
| Angles City |  | | AKA Angels Camp. A town in Calaveras county. |
| Angwin |  | | |
| Area 52 Observatory |  | | A private observatory near Ventura. |
| Arroyo Grande |  | | |
| Arthur Purcell Observatory |  | | Observatory of the Tulare Astronomical Association. |
| Atascadero |  | | |
| Auburn |  | | Forecast also covers the Auburn State Recreation Area |
| Automata Internet Observatory |  | | In Pearblossom. |
| BREIT IDEAS Observatory |  | | A private observatory outside Morgan Hill. |
| Bakersfield |  | | Home of the Kern Astronomical Society. |
| Banning |  | | |
| Baskin Engineering Observatory |  | | An observatory of the University of California, Santa Cruz. |
| Bateson Observatory |  | | A private observatory near Susanville. |
| Bayt Observatory |  | | A private observatory near Coarsegold. |
| Bear Valley |  | | A town in Alpine county. Forecast also covers Tamarack and Lake Alpine. |
| Big Bear City |  | | In the San Bernardino Mountains |
| Big Bear Solar Observatory |  | | Aka BBSO. Solar Observatory operated by the New Jersey Institute of Technology. On Big Bear Lake. |
| Big Bird Observatory |  | | A private observatory near Paradise. |
| Big Falls Campground |  | | A campground near Forest Falls. |
| Big Meadow |  | | Observing site used by the Tulare Astronomical Association and the . |
| Bishop Observatory |  | | A private observatory north of Bishop. |
| Black Mountain Observatory |  | | A site of a future private observatory near Hornbrook. |
| Blackrock Ranger Station |  | | |
| Blue Canyon |  | | Airport site used by the Sacramento Valley Astronomical Society
and members of TAC-SAC. |
| Blue Ridge |  | | The general area of Blue Ridge, in the Vaca Mountains. |
| Blythe |  | | Home of the Colorado River Astronomy Club. |
| Bodie |  | | |
| Bonny Doon Airfield |  | | A site used by the Santa Cruz Astronomy Club. |
| Bowen Observatory |  | | Observatory of Cuesta College. |
| Bransfield Observatory |  | | A private observatory somewhere in the vicinity of Piedmont. |
| Brentwood |  | | Forecast also covers Byran and Oakley. |
| Bridgeport Lake Private Observatory |  | | A private observatory in Bridgeport Valley. |
 | Bright Skies Observatory |  | | A private observatory to promote the science and technology of CCD based astro-photography in light polluted areas. |
| Buena Vista Observatory |  | | A private observatory. |
| CARMA |  | | An array of millimeter-wave radio telescopes. |
| CSM Observatory |  | | Observatory of the astronomy department of College of San Mateo. |
| Cabrillo College Observatory |  | | Observatory of Cabrillo College. |
| Cal Poly Observatory |  | | Observatory of
California Polytechnic State University. Near San Luis Obispo. |
| Calabasas |  | | |
| California City |  | | |
| California High Desert Astrophysical Observatory |  | | A private observatory near Apple Valley. |
| Cameron Park Rotary Club Community Observatory |  | | A community observatory built and operated by the Rotary Club of Cameron Park,
the El Dorado County Office of Education, and
Folsom Lake College. In El Dorado County. |
| Camp Rock Road |  | | 10 miles north east of Lucerne Valley. |
| Canebrake |  | | 7 miles east of Onyx. In the Kern valley. |
| Carlos Lemmi Observatory |  | | A private observatory near Rancho Palos Verdes. MPC G71. |
| Carrizo Plain National Monument |  | | Centered on KCL Campground, this chart covers most of
Carrizo Plain National Monument. Near Taft. |
| Castro Valley |  | | |
| Cedar Glen Observatory |  | | (A private observatory near Cedar Glen. |
| Cerro Alto Campground |  | | Campground 8 miles from Morro Bay |
| Chabot Space and Science Center |  | | A science center home to the Eastbay Astronomical Society. In Oakland. |
| Chamberlain Creek Rest Stop |  | | A public rest-stop on Highway 20. |
| Chico Community Observatory |  | | A community observatory in Upper Bidwell Park. |
| China Lake SV |  | | Site available to authorized personnel only. |
| Chuchupate Ranger Station |  | | Members of the Kern Astronomical Society observe nearby. |
| Cima |  | | A site used by the
Astronomical Society of Nevada, Las Vegas
and the Astronomical Group of Las Vegas.
In the Mojave National Preserve. |
| Clear Lake |  | | Covers the Clear Lake area inclunding Boggs Mountain State Forest. |
| Coarsegold |  | | |
| Cobb Mountain Observatory |  | | A private observatory near Cobb. |
| Coma Via Observatory |  | | An observatory near Springville. |
| Concord Observatory |  | | A private observatory in Concord. |
| Conway Summit |  | | A dark site 12 miles north of Lee Vinning in Mono County. |
| Copper Mountain Observatory |  | | Near the town of Joshua Tree which is near the north east corner of Joshua Tree National Park. |
| Corona |  | | |
| Cottonwood |  | | A town in Shasta county. |
| Cottonwood Spring Campground |  | | A campground at Joshua Tree National Park. |
| Courtright Reservoir |  | | Observing site used by the Central Valley Astronomers |
| Cow Canyon Saddle |  | | A spot in Cow Canyon, near Mt. Baldy, used as an observing and star party location by the Pomona Valley Amateur Astronomers. |
| Coyote Lake |  | | A county park used by members of the SJAA and TAC.Near Gilroy. |
| Crestview |  | | A hill site near Crestview, a few miles north-west of Mammoth Lakes in Inyo National Forest. |
| Crossroads OHV Area |  | | Near Earp. |
| Cuesta College - North County Campus |  | | A campus of Cuesta College.
Site of star parties held by the Central Coast Astronomical Society. |
| D.A.R.C. Observatory |  | | A private observatory near Mercy Hot Springs. |
| DVHS Espace Academy |  | | ESpace Academy, part of Deer Valley High School In Antioch. |
| Daniel B. Milliken Planetarium |  | | Planetarium at Chaffey College in Rancho Cucamonga. |
| DarkSights Observatory |  | | A private observatory. |
| Del Mar |  | | |
| Del Valle |  | | Site details. |
| Desert Center |  | | A spot on Hwy 177 North of Interstate 10. On the west side of Palen Pass. |
| Diablo Valley College |  | | College near Concord. |
| Dinosaur Point |  | | A site used by SJAA and TAC |
| Dowdy Ranch Visitor Center |  | | South-eastern visitors center of Henry Coe State Park. Site of local boy-scout astronomy events. |
| EAFB |  | | Edwards Air Force Base is an alternate shuttle landing site.
Also home of the Dryden Flight Research Center. |
| Eagle Lake |  | | Site of public astronomy session by Bateson Observatory personnel. |
| Eagle Ridge Observatory |  | | A private observatory near Newbury Park. |
| El Cajon |  | | |
| El Centro |  | | |
| Elk Grove |  | | Used for public star parties by the Sacramento Valley Astronomical Association (SVAS). |
| Erickson Observatory Site |  | | Future site of Erickson Observatory (private). In Warner Springs. |
| Esparto |  | | Site used by the Davis Astronomers. |
| Etna |  | | |
| Ewell Observatory |  | | |
| FLSR Observatory |  | | AKA Forest Lawn Scout Reservation Astronomy Center. |
| Far Away Observatory |  | | A private observatory in Valley Center. |
| Feather River Observatory |  | | A private observatory in Oroville. |
| Fickle Hill Observatory |  | | Observatory of Humboldt State University. Near Arcata. |
| Fiddletown |  | | A site about 6 miles east of Fiddletown proper. |
| Figueroa Lookout |  | | A picnic area
in Los Padres National Forest. |
| Folsom Lake State Recration Area |  | | State recreation area norteast of Sacramento. Chart also covers the towns of Roseville and Folsom. |
| Foothill Observatory |  | | Observatory of Foothill College. Used by the Peninsula Astronomical Society for public programs. In Los Altos Hills. |
| Foresthill |  | | |
| Fossil Falls |  | | In Owens valley. |
| Fountain Valley |  | | Near Santa Ana. |
| Fremont |  | | The town in Alameda country. |
| Fremont Peak |  | | A site used by SJAA and TAC.
Home of the Fremont Peak Observatory. |
| Fresno |  | | Home of the Central Valley Astronomers. |
| Furnace Creek |  | | A site used by the Astronomical Society of Nevada, Las Vegas,
the Las Vegas Astronomical Society
and the Astronomical Group of Las Vegas. Near Death Valley. |
| Galbreath Wildlands Preserve |  | | Wildlife preserve of
Sonoma State University. |
| Garvey Ranch Observatory |  | | Observatory in
Garvey Ranch Park in the city of Monterey Park.")
Operated by the Los Angeles Astronomical Society. |
| Glacier Point |  | | A site of public star parties. In Yosemite National Park. |
| Golden State Star Party |  | | The GSSP is a star party held by the The Astronomy Connection(TAC). Near Adin. |
| Granada Hills |  | | |
| Grandview Campground |  | | A dark sky campground. In the White-Inyo Mountains in Big Pine. |
| Grasswood Observatory |  | | A private observatory near Malibu. |
| Greeley Hill Observatory |  | | A private observatory near Coulterville. |
| Green Acres Observatory |  | | A private observatory. |
| Griffith Observatory |  | | A professional observatory with public star parties |
| Half Moon Bay |  | | |
| Halloran Summit |  | | |
| Heaven's Plateau |  | | Site of future private observatory, Frequented by some members of the Stockton Astronomical Society . Near Wilseyville. |
| Henry Coe State Park |  | | A site used by SJAA and TAC |
| Hensley Lake |  | | Regular observing site of the Central Valley Astronomers. |
| Hidden Hill Observatory |  | | Observatory of the Tri-Valley Stargazers |
| Hidden Valley Observatory |  | | A private observatory near Soquel. |
| High Sierra Park |  | | In the Stanislaus National Forest near Mi-Wuk Village. |
| Hole-in-the-Wall Campground |  | | Campground in the Mojave desert. |
| Holmes Observatory |  | | A private observatory near Lompico. |
| Hume Observatory |  | | Managed by the California Academy of Sciences and home of GORT (Gamma-ray Optical Robotic Telescope) of the
GAST Telescope Network.
|
| Huntington Beach |  | | |
| Hyampom |  | | |
| Ice House Observation Plateau |  | | IHOP is an observing site use by members of TAC-SAC. |
| Idyllwild |  | | |
| Indian Valley Observatory |  | | A private observatory near Lucerne. |
| Irvine Regional Park |  | | A park in Orange county. |
| Italian Creek Farms |  | | A private farm near Mariposa. |
| Jumbo Rocks |  | | A campground in Joshua Tree National Park. |
| Keeton Observing Site |  | | A private observing site also used by some members of the Sacramento Valley Astronomical Society |
| Kennedy Meadows |  | | In Sequoia National Forest. |
| La Mesa |  | | A town in San Diego county. |
| La Mesa Urban Observatory |  | | A private observatory in Monterey. |
| Laguna Beach |  | | |
| Laguna Niguel |  | | |
| Lake Almanor |  | | |
| Lake Elsinore |  | | |
| Lake Riverside Estates |  | | A private community in Aguanga. |
| Lake San Antonio |  | | A site used by SJAA and TAC |
| Lake Shastina |  | | About 17 miles north of Mt. Shasta. |
| Lake Sonoma |  | | A site used by TAC |
| Lancaster |  | | |
| Landers |  | | Dark-sky site for the Riverside Astronomical Society. |
| Lassen National Park |  | | Two sites
used by TAC: Devastated Area and Bumpass Hell.
No, really. I'm not making this up.
|
| Lava Beds National Monument |  | | National monument |
| Lawrence Hall of Science |  | | A public and school science center of the University of California at Berkeley. |
| Lee DaSilva Observatory |  | | A private observatory near Madera. |
| Limekiln State Park |  | | State park near Big Sur. Forcast also covers
the lookout tower at Cone Peak. |
| Little Blair Valley |  | | Site used by Oceanside Photo & Telescope Astronomical Society |
| Livermore |  | | Home of the Tri-Valley Stargazers astronomy club. Forecast also covers Pleasanton. |
| Lockwood Valley |  | | |
| Lodi |  | | |
| Long Beach |  | | |
| Lookout Ranch |  | | A private ranch. |
| Los Angeles |  | | Home of the Los Angeles Astronomical Society and
the Los Angeles Sidewalk Astronomers. |
| Lost Valley Observatory |  | | A private observatory between Yosemite and Kings Canyon in the Sierra Nevada Mountains. |
| Luz Observatory |  | | Observatory in the
Lewis Center for Educational Research. Base of the
HiDAS. In Apple Valley. |
| MIRA Chews Ridge Observatory |  | | Observatory of the Monterey Institute for Research in Astronomy. |
| Machholz Observatory |  | | A private observatory near Colfax. |
| Mais Obervatory |  | | A private spectroscopic observatory in Valley Center. |
| Mammoth Observatory |  | | A private observatory near Mammoth Lakes. |
| Mar Vista |  | | |
| Martis Creek Campground |  | | A site used by the Astronomical Society of Nevada. |
| McKinney Creek Observatory |  | | A private observatory. |
| Mendocino |  | | |
| Mendota Wildlife Area |  | | A wildlife area a few files north-east of Tranquillity. |
| Mesquite Springs |  | | In Death Valley. A site used by the Astronomical Society of Nevada, Las Vegas
and the Astronomical Group of Las Vegas. |
| Mission Trails Regional Park |  | | Centered on Kumeyaay Campground in Mission Trails Regional Park. Site of public star parties held by the San Diego Astronomy Association. |
| Modesto |  | | Home of the of Stanislaus Amateur Astronomers of Modesto Jr. College. |
| Monitor Pass |  | | |
| Monrovia |  | | Centered on Library Park, this chart marks the site of public observing held by the
Old Town Sidewalk Astronomers. |
| Montebello |  | | Montebello Open Space Preserve is a site used by TAC |
| Moreno Valley |  | | |
| Morgan Hill |  | | |
| Mount Diablo |  | | Home of the Mt. Diablo Astronomical Society. |
| Mount Hamilton |  | | Home of the Lick Observatory. |
| Mount Laguna Observatory |  | | link. |
| Mount Pinos |  | | A site in Los Padres National Forest |
| Mount Shasta |  | | A town in Siskiyou county. Home of the Mount Shasta StarGazers |
| Mount Tamalpais State Park |  | | A site used by the San Francisco Amateur Astronomers. |
| Mount Wilson Observatory |  | | link |
| Mountain High Observatory |  | | A private observatory in Julian. |
| Musser Hill Observatory |  | | A private observatory near Weaverville. |
| Napa |  | | |
| Navajo Flats |  | | A site used by the Central Coast Astronomical Society |
| Nevada City |  | | |
| Newman Vista Point |  | | A lookout on Interstate 5. |
| OCA Anza Observatory |  | | Observatory of the Orange Country Astronomers near Anza. |
| OCA Go-To Group |  | | A private observing site in Placentia, used by some members of the Orange County Astronomers. |
| OCA Silverado |  | | A site of the Orange Country Astronomers near Irvine. |
| OPT Parking Lot |  | | Parking lot of a telescope retailer which is site of public observing. In Oceanside. |
| Oak Hills Observatory |  | | A private observatory in Hesperia. |
| Oak Ridge Observatory |  | | Observatory of the Peninsula Astronomical Society, located in the Santa Cruz Mountains. |
| Oakland |  | | |
| Occidental Observatory |  | | Near Occidental. |
| Ojai |  | | |
| Old Town Pasadena |  | | Centered Colorado Blvd, somewhere between Fair Oaks and Pasadena Ave, this charts marks the site of public observing held by the
Old Town Sidewalk Astronomers. |
| Orland |  | | A town in Glenn. |
| Owl Canyon Campground |  | | Home of a star party and
messier marathon held by the
San Bernardino Valley Amateur Astronomers. Near Barstow. |
| Pacheco State Park |  | | A state park used as a dark sky site. |
| Pacifica |  | | |
| Palomar Observatory |  | | link |
| Panamint Springs |  | | The best place to observe is the campground. |
| Panoche Pass |  | | |
| PapaTom's Cosmos Research Center |  | | The Galactic Headquaters of the Cosmos Research Center. A children's science site, on private land. Somewhere around Encinitas. |
| Papoose Flat |  | | A public spot in the Inyo Mountains southeast of Big Pine. |
| Paradise |  | | |
| Parkfield |  | | A town in Monterey county. |
| Pauma Valley |  | | Site of The Kathryn Hood Observatory. |
| Paynes Creek Wetlands |  | | Trail system and picnic area. |
| Peddler Hill |  | | A site used by the Stockton Astronomical Society. |
| Penn Valley |  | | |
| Penryn |  | | |
| Phelan |  | | |
| Pine Flat Observatory |  | | A private observatory near California Hot Springs. |
| Pinhead Observatory |  | | A private observatory in Acton. |
| Pinon Hills |  | | Near Wrightwood in the San Gabriel Mountains. |
| Plettstone |  | | Home of the Dale Jay Steed Observatory, a private observatory.
A site used by members of TAC and the SJAA. Near Mariposa. |
| Poinsettia Observatory |  | | A private observatory in Poway. |
| Porterville |  | | |
| Putah Creek Observatory |  | | Future site of a private observatory in Pope Valley. |
| RTMC |  | | Riverside Telescope Makers Conference. A starparty and swaptable feeding frenzy held at Camp Oaks. |
| Ramona Observatory |  | | A private observatory near Ramona. |
| Rancho Del Sol Observatory |  | | A private observatory near Camino. |
| Red Rock Canyon State Park |  | | A state park used by local clubs for star parties. |
| Redondo Beach |  | | In the general area of the South Bay Astronomical Society. |
| Redrock Inyokern Road |  | | Used by the South Bay Astronomical Society. |
| Reuben H. Fleet Science Center |  | |
Science center at
Balboa Park. Site of
Stars in the Park public star parties held by the
San Diego Astronomy Association. in San Diego. |
| Ridgecrest |  | | |
| Rio Vista |  | | A town in Solano county. |
| Robert Brownlee Observatory |  | | An observatory of the
Mountain Skies Astronomical Society.
At MSAS Astronomy Village near Lake Arrowhead. |
| Robert Ferguson Observatory |  | | Observatory in Sugar Loaf Ridge State Park near Kenwood. |
| Robinson Creek Observatory |  | | A private observatory in Robinson Creek,west of Ukiah. |
| Rock Hill Observatory |  | | A private observatory in Grass Valley. |
| Rock Mountain Observatory |  | | A private observatory near Fallbrook. |
| Rolling Roof Observatory |  | | A private observatory near Thousand Oaks. |
| Rose Valley Campground |  | | A campground in Los Padres National Forest. |
| Ross Creek Observatory |  | | A private observatory in San Jose. |
| Rubicon Observatory |  | | A private observatory of a member of the Ukiah Astronomical Society. Near lake Mendocino. |
| Sacramento |  | | Home of the Sacrameto Valley Astronomical Association and TAC-SAC. |
| Saddleback Butte |  | | A State Park used as a star party site by
The Antelope Valley Astronomy Club. |
| Saint Mary's College Observatory |  | | AKA SMC Campus Observatory. Observatory of Saint Mary's College . |
| San Bernardino County Museum |  | | Museum and meeting place, with public astronomy of the San Bernardino Valley Amateur Astronomers. In Redlands. |
| San Clemente |  | | |
| San Clemente Island (North) |  | | Chart covers the north half of San Clamente Island. |
| San Diego |  | | Home of the San Diego Astronomy Association. |
| San Francisco |  | | Home of the San Francisco Sidewalk Astronomers
and the San Francisco Amateur Astronomers. |
| San Francisco State University Observatory |  | | Observatory of SFSU at Thornton Hall. |
| San Jose |  | | Home of the San Jose Astronomical Association. |
| San Mateo |  | | |
| San Pasqual Battlefield State Historic Park |  | | State park and site of of monthly
star parties. |
| San Rafael |  | | A site used by the used by the Marin Observers. |
| Sandstone Trailhead |  | | Head of the Standstone Peak Trail. Used by members of the Los Angeles Sidewalk Astronomers among others. |
| Santa Barbara |  | | Home of The Astronomical Unit club. |
| Santa Clarita |  | | |
| Santa Margarita Lake |  | | A site in Santa Margarita Lake Regional Park used by the
Central Coast Astronomcal Society. |
| Santa Maria |  | | In Santa Barbara county. |
| Santa Monica Canyon Observatory |  | | A private observatory. |
| Santa Monica Mountains Observatory |  | | A private observatory near Los Angeles. |
| Santa Paula |  | | A site used by the Southern California Observers. |
| Santa Rosa |  | | |
| Santa Rosa Mountain |  | | Centered on the trail to the summit. Also close to Santa Rosa Campground. |
| Santa Teresa Spring |  | | |
| Santaluz Observatory |  | | Observatory in Santaluz Club. |
| Saratoga |  | | |
| Sawmill Trailhead |  | | A site used by the Astronomical Society of the Desert. Near Pinyon Flats |
| Schoonover Park |  | | Park, and neighborhood, in the town of Marina. |
| Schreder Planetarium |  | | A planetarium with public observing sessions. In Redding. |
| Sea Ranch |  | | A private ranch near Gualala. |
| Selkovitch's Observatory |  | | |
| Shaver Lake |  | | |
| Sierra Remote Observatories |  | | A group of observatories in the Sierra Nevada
Mountains of California, dedicated to state-of-the-art robotic/remote imaging and
data acquisition. |
| Sierra Stars Observatory |  | | A private observatory near Paynesville. |
| Silverwood Lake |  | | A site used by the San Bernardino Valley Amateur Astronomers. Actually near the south-east shore of the lake. Forecast also covers the Silverwood lake State Recreation Area. |
| Simi Valley |  | | Home of the Ventura County Astronomical Society. |
| SkyScapes Observatory |  | | A private observatory in Borrego Springs. |
| Sonoma |  | | |
| Sonoma State University Observatory |  | | observatory in Sonoma State University. Near Rohnert Park and Cotati |
| Sonrisa Observatory |  | | A private observatory near Escondido. |
| South Fork Observatory |  | | A private observatory near Three Rivers. |
| Stanford |  | | |
| Star Home Observatory |  | | A site of the Tule River Amateur Astronomers. Near Springville. |
| Starry Kingdom Observatory |  | | A private observatory in Laytonville. |
| Stockton |  | | Home of the Stockton Astronomical Society. |
| Stone Creek Observatory |  | | A private observatory in the California Central Sierras. |
| Stony Ridge Observatory |  | | An observatory in the Angeles National Forest |
| Summit View Observatory |  | | A private observatory in the Santa Cruz Mountains. |
| Table Mountain Observatory |  | | Observatory at Table Mountain Facility which is operated by JPL. Near Wrightwood. |
| Tassi Observatory |  | | A private observatory near Ramona. |
| Taylor Observatory |  | | A community Observatory in Kelseyville. |
| Tehachapi Mountain Observatory |  | | A private observatory near Tehachapi. |
| Tehachapi Municipal Airport |  | | An observing site of the Greater Tehachapi Astronomy Club. |
| Telegraph City |  | | A site used by some members of the Stockton Astronomical Society. |
| Telescope Row |  | | A parking lot in
Joeseph D. Grant County Park used by the
Halls Valley Astronomical Group for public star parties. |
| Temecula |  | | Home of the The Temecula Valley Astronomers. |
| Templin Hwy |  | | A dirt parking lot at Templin Highway and Ridge Route. Used by members of the Los Angeles Sidewalk Astronomers among others. |
| Teutonia Peak |  | | A site used by the Astronomical Society of Nevada, Las Vegas,
the Las Vegas Astronomical Society
and the Astronomical Group of Las Vegas. |
| Thousand Palms |  | | Star Party Site for the Astronomical Society of the Desert. |
| Tierra del Sol |  | | Site used by San Diego Astronomy Association |
| Torrance |  | | |
| Tracy Airport |  | | |
| Trilobite Wilderness |  | | A Wilderness Area of geological interest. It's also a dark observing spot. |
| Tujunga Observatory |  | | A private observatory in Tujunga. |
| Tularcitos Observatory |  | | A site used by the Mira Observers Group |
| Twentynine Palms Airport |  | | An airport near Twentynine Palms. |
| Two Goats Observatory |  | | A private site affiliated with the Antelope Valley Astronomy Club. |
| Vacaville |  | | |
| Vallejo Observatory |  | | A private observatory site close to Vallejo. |
| Vandenberg Village |  | | |
| Vasquez Rocks |  | | A Natural Area Park used as a star party site
by The Local Group. |
| Vista |  | | |
| Vista Hill |  | | A lookout in Foothills Park in Palo Alto. Site of star parties held by the Peninsula Astronomical Society. |
| WYA Eastern Lassen Site |  | | A informal site used by the West Yolo Astronomers in the Lassen National Forest near the town of Red Rock. |
| Walker Pass Campground |  | | Campground and dark-sky site. |
| WeBeWebbiers Observatory |  | | A private observatory somewhere around Temecula. |
| Webb Schools Observatory |  | | A observatory of The Webb Schools. |
| West Sweeney Ridge Observatory |  | | A private observatory near Pacifica. |
| Wilson Hill Observatory |  | | A private observatory near Shingletown. |
| Wilton |  | | |
| Yamada Observatory |  | | A private observatory in Wonder Valley, east of Fresno. |
| Yucca Valley |  | | Home of the Andromeda Society. |
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