451 Ortega-Vigare Adobe (Los Angeles)
452 Mule Hill (San Diego)
453 Bank of Lucas, Turner and Company (San Francisco)
454 Woodward's Gardens Site (San Francisco)
455 Pacheco (Don Fernando) Adobe (Contra Costa)
456 Shingle Springs (El Dorado)
457 Indian Wells (Kern)
458 Forbes Flour Mill (Santa Clara)
459 Mellus and Howard Site (San Francisco)
460 Second Garrote (Tuolumne)
461 State Capitol Site (Santa Clara)
462 Jewish Religious Services Site (San Francisco)
463 Ophir (Placer)
464 Prairie City Site (Sacramento)
465 Old Mining Camp of Brownsville (Calaveras)
466 Peter L. Traver Building (Calaveras)
467 Old Bull Trail Road and St. Helena Toll Road (Lake)
468 Michigan Bar (Sacramento)
469 Site of Center of Villa de Branciforte (Santa Cruz)
470 Plymouth Trading Post (Amador)
471 Butterfield Stage Route (Tulare)
472 Box Canyon (San Diego)
473 Tule River Stage Station (Tulare)
474 Searsville Site (San Mateo)
475 Placerville- Dry Diggins- Old Hangtown (El Dorado)
476 Desert Spring (Kern)
477 Eureka (Humboldt)
478 Site of San Mateo County's First Sawmill (San Mateo)
479 American Ranch and Hotel Site (Plumas)
480 Plumas House Site (Plumas)
481 Spanish Ranch and Meadow Valley (Plumas)
482 Camp Wright (San Diego)
483 Father Rinaldi's Foundation (Shasta)
484 Georgetown (El Dorado)
485 Lakeview Gusher 1 (Kern)
486 El Dorado (Originally Mud Springs) (El Dorado)
487 Diamond Springs (El Dorado)
488 Fresno City (Fresno)
489 Moreland School (Santa Clara)
490 Cucamonga Rancho Winery (San Bernadino)
491 Exchange Hotel (San Diego)
492 Buttonwillow Tree (Kern)
493 Johnson's Ranch (Yuba)
494 Richardson Adobe (Los Coches Rancho) (Monterey)
495 Glennville Adobe (Kern)
496 Swiss Hotel (Sonoma)
497 S.S. Emidio (Del Norte)
498 McKittrick Brea Pit (Kern)
499 Altaville Grammar School (Calaveras)
500 Clay Street Hill Railroad Site (San Francisco)
501 Salvador Vallejo Adobe (Sonoma)
502 Oak Grove Butterfield Stage Station (San Diego)
503 First County Courthouse Site (Alameda)
504 Buena Vista Refinery (Kern)
505 Almaden Vineyards (Santa Clara)
506 The Community Methodist Church of Ione (Amador)
507 Earthquake Victims Grave (Inyo)
508 Tehachapi Loop (Kern)
509 Moraga Adobe (Contra Costa)
510 Francisco Solano Alviso Adobe (Alameda)
511 Martínez Adobe (Martinez Adobe) (Contra Costa)
512 Alvarado Adobe (Contra Costa)
513 Flaco Burial Place (San Joaquin)
514 Pomona Water Powerplant (Los Angeles)
515 Pacheco (Don Salvio) Adobe (Contra Costa)
516 Well, CSO 4 (Los Angeles)
516.2 Mentryville (Los Angeles)
517 Emigrant Trail (Siskiyou)
518 Agua Fria (Mariposa)
519 Bell's Bridge (Shasta)
520 San Joaquin Valley College Site (San Joaquin)
521 Greenwood (El Dorado)
522 Serra Springs (Los Angeles)
523 San Diego Barracks (San Diego)
524 Juana Briones De Miranda Site (Santa Clara)
525 Sutter's Fort (Sacramento)
526 First Passenger Railroad (Sacramento)
527 Savage Trading Post (Mariposa)
528 Yucaipa Adobe (San Bernadino)
529 Angel Island (Marin)
530 Gold Discovery Site (El Dorado)
531 Lummis Home (Los Angeles)
532 Casa de Oro (Monterey)
533 San Pasqual Battlefield (San Diego)
534 Peña Adobe (Solano)
535 Carpinteria and Indian Village of Mishopshnow (Santa Barbara)
536 Original building of the University of Southern California (Los Angeles)
537 Cottonwood Charcoal Kilns (Inyo)
538 First Publicly Owned School Building (San Diego)
539 Posey Station (Kern)
540 Sinks of the Tejón (Kern)
541 Brother Jonathan Cemetery (Del Norte)
542 Estrella Adobe Church (San Luis Obispo)
543 California's First Drilled Oil Wells (Humboldt)
544 Fort Ter-Wer Site (Del Norte)
545 Camp Lincoln (Del Norte)
546 Applegate-Lassen Emigrant Trail (Modoc)
547 Chiles Mill Site (Napa)
548 Canal Farm Inn (Merced)
549 Frog Woman Rock (Mendocino)
550 Los Banos (Merced)
551 Grange Hall Site (El Dorado)
552 Pioneer Paper Mill (Marin)
553 Rancho Camulos (Ventura)
554 Cecil B. DeMille Studio Barn (Los Angeles)
555 Lockhart Ferry (Shasta)
556 Rancho San Francisco (Los Angeles)
557 Hemet Maze Stone (Riverside)
558 First Passenger Railroad Terminal (Sacramento)
559 Hastings Adobe (Trussell-Winchester Adobe) (Santa Barbara)
560 Hill Town Ferry (Monterey)
561 Schramsberg Vineyard (Napa)
562 La Christianita (La Cristianita) (San Diego)
563 Charles Krug Winery (Napa)
564 Yount Blockhouse Site (Napa)
565 Lassen Grave (Lassen)
566 Sacramento City Cemetery (Sacramento)
567 St. Vincent's Place (Court) (Los Angeles)
568 Hernando de Alarcón Expedition (Imperial)
569 Mormon Island (El Dorado)
570 Negro Hill (El Dorado)
571 Salmon Falls (El Dorado)
572 Condemned Bar (El Dorado)
573 Sycamore Grove (San Bernadino)
574 State Capitol in Vallejo (Solano)
575 Sloughhouse (Sacramento)
576 Santa Fe and Salt Lake Trail Monument San Bernadino
577 Mormon Trail Monument San Bernadino
578 Stoddard-Waite Monument San Bernadino
579 Daley Toll Road Monument San Bernadino
580 Alamitos #1 Los Angeles
581 Well 2-6 Kern
582 Well, Hill 4 Santa Barbara
583 Felton Covered Bridge Santa Cruz
584 Fort Miller (Fresno)
585 Pioneer Express Trail (Placer)
586 Cresta Blanca Winery (Alameda)
587 First Public School Site (San Francisco)
588 Kern River Slough Station (Kern)
589 Mountain House Station (Kern)
590 Lang Southern Pacific Station (Los Angeles)
591 Sutter's Landing (Sacramento)
592 New Helvetia Cemetery (Sacramento)
593 Sutterville (Sacramento)
594 China Slough Site (Sacramento)
595 Eagle Theater (Sacramento)
596 Booth Home Site (Sacramento)
597 What Cheer House (Sacramento)
598 Stage and Railroad Site (Sacramento)
599 Crocker Gallery (Sacramento)
600 Headquarters of the Big Four (Sacramento)