Catalina Island Conservancy

US nonprofit organization

Catalina Island Conservancy's location, the Trailhead, at 708 Crescent Ave. in Avalon on Catalina Island

The Catalina Island Conservancy is a nonprofit organization established to protect and restore Santa Catalina Island, California, United States. The Conservancy was established in 1972 through the efforts of the Wrigley and Offield families. The Conservancy was created when both families deeded 42,135 acres (170.51 km2) of the island over to the organization—88% of the Island.

Founded in 1972, the Conservancy is one of the oldest private land trusts in Southern California.[1] The stated goal of the Conservancy is to "be a responsible steward of our lands through a balance of conservation, education and recreation."[1]

In April 2019, the Conservancy opened a new base of operations, the Trailhead, at 708 Crescent Ave. in the city of Avalon on Catalina Island.[2] It is the first LEED Gold certified building in Avalon. In addition to providing information about recreation opportunities on the Island, hiking and biking permits, and serving as the launch point for Conservancy Eco Tours and Wildlands Express shuttles, the Trailhead has educational exhibits and a shop. The second floor of the Trailhead features a plein air exhibit and a restaurant. The third floor includes a native plant garden featuring several Catalina native or endemic species.

## Conservation

[edit]

Established to protect and restore Catalina, the Conservancy seeks a balance between conservation and public interest. Catalina's native plant community is central to the ecosystem of the island, providing habitats that offer shelter and food to the island's endemic and native animals like the Catalina Island fox, Catalina quail, and bald eagles among many other species. But years of importing non-native plants to feed grazing animals and landscape homes, has introduced to Catalina more than 76 highly invasive plant species.

### Invasive plants

[edit]

Due to so many efforts in the past to capitalize on the island, many invasive flora and fauna were introduced. The Conservancy removes invasive plants to protect and restore the island. The Conservancy's Catalina Habitat Improvement and Restoration Program (CHIRP) is designed to ensure long-term conservation of species richness and habitat integrity in one of the world's biodiversity hot spots. Three species of highly invasive plants have been nearly eradicated from the island: tamarisk, pampas grass and fig. CHIRP has targeted 27 other species for eradication and another 36 to be managed to limit their presence on the Island.[3]

By eliminating and managing invasive plant species, the CHIRP program has encouraged native species to grow and flourish.[4] It contributed to the discovery of new species and the rediscovery of species following years of fear that they were extinct. Among those rediscovered are Catalina grass and Lyon's pygmy daisy, which had previously not been seen for 80 years. The James P. Ackerman Native Plant Nursery at Middle Ranch provides plant and seed material for re-vegetation of the island.

The Conservancy also operates the Stop the Spread program, a partnership between the Conservancy's naturalists, CHIRP staff and the many youth camps on the island.[5] The program is focused on invasive plant control in and around each camp. Campers are taught about the value of native species, the problems posed by invasive species and how to help eradicate invasive species. Campers also learn how to restore and improve native environments. Stop the Spread has given nearly 15,000 campers tens of thousands of hours of education from 2009 to 2013. Campers manage about 450 acres for 75 different invasive species, logging more than 7,000 hours of invasive plant removal a year.

### Animals

[edit]

The Catalina Island fox is found on Catalina Island and nowhere else in the world. An adult fox weighs 4 to 6 pounds (1.8 to 2.7 kg) and is about 25% smaller than its mainland ancestor, the gray fox. Its diet includes mice, lizards, birds, berries, insects, and cactus fruit. It is Catalina's largest terrestrial predator.[6]

In late 1999, an outbreak of distemper virus caused the fox population to plummet from about 1,300 to just 100 animals. In 2000, the Catalina Island Conservancy and its partner, the Institute for Wildlife Studies, implemented the Catalina Island Fox Recovery Plan. The plan combined relocation, vaccinations, captive breeding and release, and wild fox population monitoring.[7]

Due to this outbreak The US Fish and Wildlife Service declared the Catalina Island fox an endangered sub-species in 2004. After 15 years of work by wildlife biologists, the Conservancy announced that the Catalina Island adult fox population had rebounded to pre-crash numbers.[8] The Conservancy's biologists counted 1,850 foxes on the island, 350 more than the year before, in one of the fastest recoveries ever of an endangered species.[9]

The Conservancy has worked with the Institute for Wildlife Studies in a successful program that brought bald eagles back to Catalina and the other Channel Islands after DDT contamination decimated their numbers.[citation needed]

### Bison

[edit]

The Conservancy is also actively managing a herd of bison on the island with a novel contraceptive program that is attracting the attention of wild animal managers on the mainland.[10] The bison were first brought to the island in 1924 for a movie.[11] Over the years, they became an iconic symbol of the island's culture. But with no natural predators, the herd grew to as many as 500. The Conservancy had previously conducted studies that found the island could support only about 150 to 200 bison. To control the herd's size, the Conservancy had been periodically conducting roundups and shipping bison to the mainland.

Shipping the bison to the mainland was costly, and it raised concerns about the stress on the animals during shipment and the expansion of the herd beyond ecologically sustainable numbers between shipments. Beginning in 2009, the Conservancy's scientists injected the female bison with porcine zona pellucida (PZP), a contraceptive that had been used for fertility control in zoos, wild horses and white tail deer.[12] In addition to substantially reducing the number of new calves, the PZP had no apparent effect on pregnant females or their offspring. A peer-reviewed study published in 2013 reported that the contraceptive program was effective in controlling the herd.[13] Previously, more than two-thirds of the cows delivered calves every year. After receiving the contraceptive, the calving rate dropped to 10.4% Archived 2014-05-21 at the Wayback Machine in the first year and 3.3% Archived 2014-05-21 at the Wayback Machine the following year.

The Conservancy's scientists, and their collaborators at California State University, Fullerton, continue to study PZP to determine if the female bison can regain their fertility[14] after a period of time without the contraceptive. They are also evaluating the timing of ovulation in response to PZP application. After several years without bison births on the island, Catalina Island Conservancy had plans to bring two pregnant bison to Catalina at the end of 2020.[15]

### Deer

[edit]

The deer are an invasive species, and they have a significant impact on native plants due to over-grazing. In 2023, the Conservancy created a plan to reduce the impact that invasive deer have on native vegetation. After consulting with wildlife experts, capturing and sterilization were eliminated as options, and a culling (killing from helicopters) approach was adopted. Some residents of Santa Catalina Island were opposed to the cull, and asked the Conservancy to reconsider.[16]

## Education

[edit]

Each year, more than 100,000 children and adults learn about the uniqueness of Catalina's Mediterranean ecosystem and what they can do to improve the planet through the Conservancy's educational programs and a wide variety of youth camps the Conservancy hosts on its lands. Among the educational programs it offers are:

* The Naturalist Training Program provides those working in the island's hospitality industry with in-depth environmental and conservation information.
* Through the Families in Nature program, island residents can take free trips into the wildlands led by Conservancy-trained naturalists.
* The Conservancy's Kids in Nature after-school program educates children about the island and the environment through hikes and other outdoor experiences.
* The ISLAND Program for K-5 students and the Island Scholars Program provide nature-based field experiences to young people.
* The Conservancy's Rose Ellen Gardner Internship is helping train the next generation of island leaders.

The Nature Centers at the Airport in the Sky and Avalon Canyon showcase the island's natural history and the Conservancy's restoration accomplishments. The Conservancy operates the airport as well, which is located about 10 miles from Avalon. It also operates the Explore Store in its headquarters at Conservancy House, 125 Clarissa Ave., Avalon.

The nature centers' exhibits focus on the island's natural history, including its animals, plants, geology and marine life, and the conservation efforts led by the Conservancy. The Wrigley Memorial & Botanic Garden offers visitors a living exhibition of the plant life on the island. The Conservancy cares for such endemics as the Catalina liveforever, Catalina manzanita and Catalina Island bedstraw at its Ackerman Native Plant Nursery at Middle Ranch in the island's center.

The Conservancy offers several other publications and productions for the public, including the biannual Conservancy Times magazine; monthly Conservancy News e-newsletter and an Annual Report.

## Recreation

[edit]

The Catalina Island Conservancy offers 50 miles of biking trails and nearly 150 miles of hiking opportunities within its road and trails system,[17] including the Trans-Catalina Trail, which stretches 38.5 miles from the Catalina Island Conservancy's visitors' center, the Trailhead in Avalon on the East End, to Parson's Landing on the West End. It then loops back to Two Harbors.[18] Other recreational offerings include:[19]

* Running: Numerous endurance events throughout the year including the Eco-Marathon and the Catalina Marathon
* Camping: Five campgrounds and nine boat-in campsites
* Flying: 7,500 landings a year at the Airport in the Sky
* Volunteer Vacations: Volunteers help the Conservancy and get to see parts of the Island rarely seen by guests

The Conservancy operates annual events including the Conservancy Ball and Catalina: The Wild Side Art Show & Sale.

The Catalina Island Conservancy operates out of offices in Avalon and Middle Ranch on the island and in Long Beach, California, on the mainland. It has a staff of 75 and is aided by a donor base and a volunteer force that contributes 25,000 man-hours per year.

## References

[edit]

1. ^ a b "About the Conservancy". Catalina Island Conservancy. Retrieved May 21, 2014.
2. ^ "Catalina Island Conservancy". catalinaconservancy.org. Retrieved June 24, 2019.
3. ^ Summers, Tony. “What It Takes to Eradicate a Species … or Thirty.” Conservancy Times, Spring/Summer 2013, pp.1, 3, 21-22.
4. ^ "Invasive Plant Removal". Catalina Island Conservancy. Retrieved May 24, 2014.
5. ^ Rhein, Bob. "'Stop The Spread' Success on West End". Catalina Island Conservancy. Retrieved May 24, 2014.
6. ^ "Catalina Island Conservancy".
7. ^ Hein, Frank J. (2013). Wild Catalina Island: Natural Secrets and Ecology. Charleston, SC: The History Press. p. 106.
8. ^ Maxwell, Patricia (March 4, 2014). "Catalina Island Conservancy's Fox Recovery Program Enjoys Continued Success" (PDF) (Press release). Catalina Island Conservancy. Archived from the original (PDF) on May 21, 2014. Retrieved May 21, 2014.
9. ^ Brennan, Deborah Sullivan (March 4, 2014). "Endangered Catalina fox now at record high". U-T San Diego. Retrieved May 21, 2014.
10. ^ Maxwell, Patricia (December 18, 2013). "Study Finds Catalina Island Conservancy Contraception Program Effectively Manages Bison Population" (PDF) (Press release). Catalina Island Conservancy. Archived from the original (PDF) on May 21, 2014. Retrieved May 21, 2014.
11. ^ Siegler, Kirk (August 13, 2013). "Of Bison, Birth Control And An Island Off Southern Calif". NPR.org. NPR. Retrieved May 21, 2014.
12. ^ McBride, Sarah (November 23, 2009). "A Discouraging Word Isn't Enough to Control Catalina's Fertile Buffalo". The Wall Street Journal. Retrieved June 25, 2014.
13. ^ "Catalina Island's Bison Benefit From Birth Control". CBS Los Angeles. December 22, 2013. Retrieved June 25, 2014.
14. ^ "Bison Birth Control: Air Guns to Manage Catalina Island Herd Temporarily Holstered". NBC Los Angeles. August 14, 2013. Retrieved July 29, 2020.
15. ^ "Bison to Join Catalina Herd" (PDF). Catalina Island Conservancy. Archived from the original (PDF) on January 22, 2022. Retrieved November 16, 2020.
16. ^ "Catalina deer in the crosshairs: Will compromise avert a planned slaughter?". Los Angeles Times. February 2, 2024. Retrieved February 26, 2024.
17. ^ http://www.catalinaconservancy.org/userfiles/files/Summer Naturalists PR FINAL.pdf Archived 2014-08-08 at the Wayback Machine [bare URL PDF]
18. ^ "Catalina Island Conservancy".
19. ^ "visit - Catalina Island Conservancy". catalinaconservancy.org. Retrieved April 10, 2024.

* v
* t
* e

Protected areas of California

National Park System

| Parks|

* Channel Islands
* Death Valley
* Joshua Tree
* Kings Canyon
* Lassen Volcanic
* Pinnacles
* Redwood
* Sequoia
* Yosemite

|

Preserves|

Mojave

Monuments|

* Cabrillo
* Castle Mountains
* César E. Chávez
* Devils Postpile
* Lava Beds
* Muir Woods
* Tule Lake

Seashores|

* Point Reyes

Historical Parks|

* Rosie the Riveter World War II Home Front
* San Francisco Maritime

Historic Sites|

* Eugene O'Neill
* Fort Point
* John Muir
* Manzanar

Memorials|

* Port Chicago Naval Magazine

Recreation Areas|

* Golden Gate
* Santa Monica Mountains
* Whiskeytown–Shasta–Trinity

California State Parks

| Parks|

* Ahjumawi Lava Springs
* Andrew Molera
* Angel Island
* Año Nuevo
* Anza-Borrego Desert
* Arthur B. Ripley Desert Woodland
* Bidwell–Sacramento River
* Big Basin Redwoods
* Border Field
* Bothe-Napa Valley
* Burton Creek
* Butano
* Calaveras Big Trees
* Castle Crags
* Castle Rock
* Caswell Memorial
* China Camp
* Chino Hills
* Clear Lake
* Coast Dairies
* Crystal Cove
* Cuyamaca Rancho
* D. L. Bliss
* Del Norte Coast Redwoods
* Donner Memorial
* Dos Rios
* Ed Z'berg Sugar Pine Point
* Emerald Bay
* The Forest of Nisene Marks
* Fort Ord Dunes
* Fremont Peak
* Garrapata
* Gaviota
* Great Valley Grasslands
* Grizzly Creek Redwoods
* Grover Hot Springs
* Hearst San Simeon
* Hendy Woods
* Henry Cowell Redwoods
* Henry W. Coe
* Humboldt Lagoons
* Humboldt Redwoods
* Jedediah Smith Redwoods
* Julia Pfeiffer Burns
* Leo Carrillo
* Limekiln
* MacKerricher
* Malibu Creek
* Manchester
* McArthur–Burney Falls Memorial
* McLaughlin Eastshore
* Mendocino Headlands
* Mendocino Woodlands
* Montaña de Oro
* Morro Bay
* Mount Diablo
* Mount San Jacinto
* Mount Tamalpais
* Navarro River Redwoods
* Pacheco
* Palomar Mountain
* Pfeiffer Big Sur
* Placerita Canyon
* Plumas-Eureka
* Point Mugu
* Portola Redwoods
* Prairie Creek Redwoods
* Red Rock Canyon
* Richardson Grove
* Rio de Los Angeles
* Robert Louis Stevenson
* Russian Gulch
* Saddleback Butte
* Salt Point
* Samuel P. Taylor
* San Bruno Mountain
* Sinkyone Wilderness
* South Yuba River
* Sue-meg
* Sugarloaf Ridge
* Sutter Buttes
* Tolowa Dunes
* Tomales Bay
* Topanga
* Trione-Annadel
* Van Damme
* Washoe Meadows
* Wilder Ranch

|

Natural Reserves|

* Antelope Valley California Poppy
* Armstrong Redwoods
* Azalea
* Caspar Headlands
* John B. Dewitt Redwoods
* John Little
* Jug Handle
* Kruse Rhododendron
* Los Osos Oaks
* Mailliard Redwoods
* Mono Lake Tufa
* Montgomery Woods
* Point Lobos
* Smithe Redwoods
* Torrey Pines
* Tule Elk

Marine Reserves|

* Albany
* Anacapa Island SMR
* Asilomar
* Begg Rock
* Big Creek
* Bodega Head
* Cabrillo
* Carmel Pinnacles
* Carrington Point
* Del Mar Landing
* Elkhorn Slough
* Emeryville Crescent
* Estero de Limantour and Drakes Estero
* Fitzgerald
* Gerstle Cove
* Gull Island
* Harris Point
* Judith Rock
* Laguna Beach
* Long Point
* Lovers Point
* Montara and Pillar Point
* Moro Cojo Slough
* Morro Bay
* Natural Bridges
* Piedras Blancas
* Point Arena
* Point Buchon
* Point Cabrillo
* Point Dume
* Point Lobos
* Point Reyes
* Point Sur
* Richardson Rock
* Russian River
* Santa Barbara Island
* Scorpion
* Sea Lion Gulch
* Skunk Point
* South Cape Mendocino
* Stewarts Point
* Vandenberg

Historic Parks|

* Anderson Marsh
* Antelope Valley Indian Museum
* Bale Grist Mill
* Benicia Capitol
* Bidwell Mansion
* Bodie
* California Citrus
* California State Indian Museum
* Chumash Painted Cave
* Colonel Allensworth
* Columbia
* El Presidio de Santa Barbara
* Empire Mine
* Folsom Powerhouse
* Fort Humboldt
* Fort Ross
* Fort Tejon
* Governor's Mansion
* Hearst Castle
* Indian Grinding Rock
* Jack London
* La Purísima Mission
* Leland Stanford Mansion
* Los Angeles
* Los Encinos
* Malakoff Diggins
* Marconi Conference Center
* Marsh Creek
* Marshall Gold Discovery
* Monterey
* Old Sacramento
* Old Town San Diego
* Olompali
* Pigeon Point Light Station
* Pío Pico
* Point Sur
* Railtown 1897
* Rancho Petaluma Adobe
* San Juan Bautista
* San Pasqual Battlefield
* Santa Cruz Mission
* Santa Susana Pass
* Shasta
* Sonoma
* Sutter's Fort
* Tomo-Kahni
* Wassama Round House
* Watts Towers
* Weaverville Joss House
* Will Rogers
* William B. Ide Adobe
* Woodland Opera House

Beaches|

* Asilomar
* Bean Hollow
* Bolsa Chica
* Cardiff
* Carlsbad
* Carmel River
* Carpinteria
* Caspar Headlands
* Cayucos
* Corona del Mar
* Crown Memorial
* Dockweiler
* Doheny
* El Capitán
* Emma Wood
* Gray Whale Cove
* Greenwood
* Half Moon Bay
* Huntington
* Leucadia
* Lighthouse Field
* Little River
* Malibu Lagoon
* Mandalay
* Manresa
* Marina
* McGrath
* Montara
* Monterey
* Moonlight
* Morro Strand
* Moss Landing
* Natural Bridges
* New Brighton
* Pacifica
* Pelican
* Pescadero
* Pismo
* Point Dume
* Point Sal
* Pomponio
* Refugio
* Robert H. Meyer Memorial
* Salinas River
* San Buenaventura
* San Clemente
* San Elijo
* San Gregorio
* San Onofre
* Santa Monica
* Schooner Gulch
* Seacliff
* Silver Strand
* Sonoma Coast
* South Carlsbad
* Sunset
* Thornton
* Torrey Pines
* Trinidad
* Twin Lakes
* Westport-Union Landing
* Will Rogers
* William Randolph Hearst Memorial
* Zmudowski

Recreation Areas|

* Admiral William Standley
* Auburn
* Austin Creek
* Benbow
* Benicia
* Bethany Reservoir
* Brannan Island
* Candlestick Point
* Castaic Lake
* Colusa-Sacramento River
* Folsom Lake
* Franks Tract
* George J. Hatfield
* Harry A. Merlo
* Kenneth Hahn
* Kings Beach
* Lake Del Valle
* Lake Oroville
* Lake Perris
* Lake Valley
* Martial Cottle
* McConnell
* Millerton Lake
* Picacho
* Providence Mountains
* Salton Sea
* San Luis Reservoir
* Silverwood Lake
* Standish-Hickey
* Tahoe
* Turlock Lake
* Woodson Bridge

Vehicular
Recreation Areas|

* Carnegie
* Clay Pit
* Heber Dunes
* Hollister Hills
* Hungry Valley
* Oceano Dunes
* Ocotillo Wells
* Prairie City

Other|

* Burleigh H. Murray Ranch
* California State Capitol Museum
* California State Mining and Mineral Museum
* California State Railroad Museum
* Castro Adobe
* Delta Meadows
* Estero Bay
* Hatton Canyon
* Indio Hills Palms
* Point Cabrillo Light
* Ishxenta State Park
* Point Montara Light
* Reynolds Wayside Campground
* San Timoteo Canyon
* Stone Lake
* Verdugo Mountains
* Ward Creek
* Wildwood Canyon

National Forests and Grasslands

| National Forests
and Grasslands|

* Angeles
* Butte Valley NG
* Cleveland
* Eldorado
* Humboldt–Toiyabe
* Inyo
* Klamath
* Lake Tahoe Basin
* Lassen
* Los Padres
* Mendocino
* Modoc
* Plumas
* Rogue River–Siskiyou
* San Bernardino
* Sequoia
* Shasta–Trinity
* Sierra
* Six Rivers
* Stanislaus
* Tahoe

|

National Wilderness
Preservation System|

* Agua Tibia
* Ansel Adams
* Bucks Lake
* Caribou
* Carson–Iceberg
* Castle Crags
* Cucamonga
* Desolation
* Dick Smith
* Dinkey Lakes
* Emigrant
* Golden Trout
* Hoover
* Inyo Mountains
* Ishi
* Jennie Lakes
* John Muir
* Kaiser
* Marble Mountain
* Mokelumne
* Mount Lassic
* Mount Shasta
* North Fork
* Pine Creek
* San Gabriel
* San Jacinto
* San Rafael
* Sanhedrin
* Sespe
* Siskiyou
* Snow Mountain
* South Fork Eel River
* South Sierra
* South Warner
* Thousand Lakes
* Trinity Alps
* Ventana
* Yolla Bolly–Middle Eel
* Yuki

National Monuments
and Recreation Areas|

* Giant Sequoia National Monument
* San Gabriel Mountains National Monument
* Sand to Snow National Monument
* Santa Rosa and San Jacinto Mountains National Monument
* Smith River National Recreation Area
* Whiskeytown–Shasta–Trinity National Recreation Area

State Forests

* Boggs Mountain Demonstration
* Ellen Pickett
* Jackson Demonstration
* Las Posadas
* LaTour Demonstration
* Mount Zion Demonstration
* Mountain Home Demonstration
* Soquel Demonstration

National Wildlife Refuges

* Antioch Dunes
* Bitter Creek
* Blue Ridge
* Butte Sink
* Castle Rock
* Clear Lake
* Coachella Valley
* Colusa
* Delevan
* Don Edwards San Francisco Bay
* Ellicott Slough
* Farallon
* Guadalupe-Nipomo Dunes
* Hopper Mountain
* Humboldt Bay
* Imperial
* Kern
* Lower Klamath
* Marin Islands
* Merced
* Modoc
* Pixley
* Sacramento
* Sacramento River
* Salinas River
* San Diego Bay
* San Diego
* San Joaquin River
* San Luis
* San Pablo Bay
* Seal Beach
* Sonny Bono Salton Sea
* Stone Lakes
* Sutter
* Tijuana Slough
* Tule Lake

State Wildlife Areas

| Wildlife
Areas|

* Antelope Valley
* Ash Creek
* Bass Hill
* Battle Creek
* Big Lagoon
* Big Sandy
* Biscar
* Butte Valley
* Buttermilk Country
* Cache Creek
* Camp Cady
* Cantara/Ney Springs
* Cedar Roughs
* Cinder Flats
* Collins Eddy
* Colusa Bypass
* Coon Hollow
* Cottonwood Creek
* Crescent City Marsh
* Crocker Meadows
* Daugherty Hill
* Decker Island
* Doyle
* Dutch Flat
* Eastlker River
* Eel River
* Elk Creek Wetlands
* Elk River
* Fay Slough
* Feather River
* Fitzhugh Creek
* Fremont Weir
* Grass Lake
* Gray Lodge
* Green Creek
* Grizzly Island
* Hallelujah Junction
* Heenan Lake
* Hill Slough
* Hollenbeck Canyon
* Honey Lake
* Hope Valley
* Horseshoe Ranch
* Imperial
* Indian Valley
* Kelso Peak and Old Dad Mountains
* Kinsman Flat
* Knoxville
* Laguna
* Lake Berryessa
* Lake Earl
* Lake Sonoma
* Little Panoche Reservoir
* Los Banos
* Lower Sherman Island
* Mad River Slough
* Marble Mountains
* Mendota
* Merrill's Landing
* Miner Slough
* Monache Meadows
* Morro Bay
* Moss Landing
* Mouth of Cottonwood Creek
* Napa-Sonoma Marshes
* North Grasslands
* O'Neill Forebay
* Oroville
* Petaluma Marsh
* Pickel Meadow
* Pine Creek
* Point Edith
* Putah Creek
* Rector Reservoir
* Red Lake
* Rhode Island
* Sacramento River
* San Felipe Valley
* San Jacinto
* San Luis Obispo
* San Luis Reservoir
* San Pablo Bay
* Santa Rosa
* Shasta Valley
* Silver Creek
* Slinkard/Little Antelope
* Smithneck Creek
* South Fork
* Spenceville
* Surprise Valley
* Sutter Bypass
* Tehama
* Truckee River
* Upper Butte Basin
* Volta
* Warner Valley
* Waukell Creek
* West Hilmar
* Westlker River
* White Slough
* Willow Creek
* Yolo Bypass

|

Ecological
Reserves|

* Albany Mudflats
* Alkali Sink
* Allensworth
* Atascadero Creek Marsh
* Bair Island
* Baldwin Lake
* Batiquitos Lagoon
* Blue Sky
* Boden Canyon
* Boggs Lake
* Bolsa Chica
* Bonny Doon
* Buena Vista Lagoon
* Butler Slough
* Butte Creek Canyon
* Butte Creek House
* Buttonwillow
* By Day Creek
* Calhoun Cut
* Canebrake
* Carlsbad Highlands
* Carmel Bay
* Carrizo Canyon
* Carrizo Plains
* China Point
* Clover Creek
* Coachella Valley
* Coal Canyon
* Corte Madera Marsh
* Crestridge
* Dairy Mart Ponds
* Dales Lake
* Del Mar Landing
* Eden Landing
* Elkhorn Slough
* Estelle Mountain
* Fall River Mills
* Fish Slough
* Fremont Valley
* Goleta Slough
* Indian Joe Spring
* Kaweah
* Kerman
* King Clone
* Laguna Laurel
* Loch Lomond Vernal Pool
* Lokern
* Magnesia Spring
* Marin Islands
* Mattole River
* McGinty Mountain
* Morro Dunes
* Morro Rock
* Napa River
* North Table Mountain
* Oasis Spring
* Panoche Hills
* Peytonia Slough
* Phoenix Vernal Pools
* Pine Hill
* Piute Creek
* Pleasant Valley
* Rancho Jamul
* Redwood Shores
* River Springs Lakes
* Saline Valley
* San Dieguito Lagoon
* San Elijo Lagoon
* San Felipe Creek
* San Joaquin River
* Santa Rosa Plateau
* Springville
* Stone Corral
* Sycamore Canyon
* Sycuan Peak
* Thomes Creek
* Tomales Bay
* Upper Newport Bay
* Watsonville Slough
* West Mojave Desert
* Woodbridge
* Yaudanchi

Marine
Protected
Areas|

* Abalone Cove and Point Vicente
* Anacapa Island SMCA
* Año Nuevo
* Arrow Point to Lion Head Point
* Batiquitos Lagoon
* Big Creek
* Bodega Head
* Bolsa Chica
* Cambria
* Campus Point
* Carmel Bay
* Cat Harbor
* Crystal Cove
* Dana Point
* Duxbury Reef
* Edward F. Ricketts
* Elkhorn Slough
* Estero Americano
* Estero de Limantour and Drakes Estero
* Estero de San Antonio
* Fagan Marsh
* Famosa Slough
* Farnsworth Onshore and Offshore
* Goleta Slough
* Greyhound Rock
* Lovers Cove and Casino Point
* MacKerricher
* Marin Islands
* Morro Bay
* Naples
* Pacific Grove Marine Gardens
* Painted Cave
* Piedras Blancas
* Point Arena
* Point Buchon
* Point Dume
* Point Reyes
* Point Sur
* Portuguese Ledge
* Pyramid Point
* Robert E. Badham
* Robert W. Crown
* Russian Gulch
* Russian River
* Salt Point
* San Diego-Scripps
* San Dieguito Lagoon
* San Elijo Lagoon
* Saunders Reef
* Sea Lion Cove
* Sonoma Coast
* Soquel Canyon
* South La Jolla
* South Point
* Southeast Farallon Island
* Stewarts Point
* Swami's
* Tijuana River Mouth
* Upper Newport Bay
* Van Damme
* Vandenberg
* White Rock (Cambria)

Bureau of Land Management National Conservation Lands

| National Monuments|

* Berryessa Snow Mountain
* California Coastal
* Carrizo Plain
* Cascade–Siskiyou
* Fort Ord
* Mojave Trails
* Sand to Snow
* Santa Rosa and San Jacinto Mountains

|

National
Conservation Areas|

* California Desert
* King Range

Wilderness Areas|

* Argus Range
* Big Maria Mountains
* Bigelow Cholla Garden
* Bighorn Mountain
* Black Mountain
* Bright Star
* Bristol Mountains
* Cadiz Dunes
* Carrizo Gorge
* Chanchelulla
* Chemehuevi Mountains
* Chimney Peak
* Chuckwalla Mountains
* Chumash
* Cleghorn Lakes
* Clipper Mountain
* Coso Range
* Coyote Mountains
* Darwin Falls
* Dead Mountains
* Dick Smith
* El Paso Mountains
* Fish Creek Mountains
* Funeral Mountains
* Garcia
* Golden Valley
* Grass Valley
* Headwaters Forest Reserve
* Hollow Hills
* Ibex
* Indian Pass
* Inyo Mountains
* Jacumba
* Kelso Dunes
* Kiavah
* Kingston Range
* Little Chuckwalla Mountains
* Little Picacho
* Machesna Mountain
* Malpais Mesa
* Manly Peak
* Matilija
* Mecca Hills
* Mesquite
* Newberry Mountains
* Nopah Range
* North Algodones Dunes
* North Mesquite Mountains
* Old Woman Mountains
* Orocopia Mountains
* Otay Mountain
* Owens Peak
* Pahrump Valley
* Palen/McCoy
* Palo Verde Mountains
* Picacho Peak
* Piper Mountain
* Piute Mountains
* Red Buttes
* Resting Spring Range
* Rice Valley
* Riverside Mountains
* Rodman Mountains
* Sacatar Trail
* Saddle Peak Hills
* San Gorgonio
* Santa Lucia
* Santa Rosa
* Sawtooth Mountains
* Sespe
* Sheephole Valley
* South Nopah Range
* Stateline
* Stepladder Mountains
* Surprise Canyon
* Sylvania Mountains
* Trilobite
* Turtle Mountains
* Whipple Mountains

National Marine Sanctuaries

* Channel Islands
* Chumash Heritage
* Cordell Bank
* Greater Farallones
* Monterey Bay

National Estuarine Research Reserves

* Elkhorn Slough
* San Francisco Bay
* Tijuana River

University of California Natural Reserve System

* Angelo Coast Range
* Año Nuevo Island
* Blue Oak Ranch
* Bodega Marine
* Box Springs
* Burns Piñon Ridge
* Carpinteria Salt Marsh
* Chickering American River
* Coal Oil Point
* Dawson Los Monos Canyon
* Eagle Lake Field Station
* Elliott Chaparral
* Emerson Oaks
* Fort Ord
* Hans Jenny Pygmy Forest
* Hastings
* James San Jacinto Mountains
* Jepson Prairie
* Kendall-Frost Mission Bay Marsh
* Landels-Hill Big Creek
* Lassen Field Station
* McLaughlin
* Merced Vernal Pools and Grassland
* Motte Rimrock
* Philip L. Boyd Deep Canyon Desert
* Point Reyes Field Station
* Quail Ridge
* Rancho Marino
* Sagehen Creek Field Station
* San Joaquin Marsh
* Santa Cruz Island
* Scripps Coastal
* Sedgwick
* Stebbins Cold Canyon
* Stunt Ranch Santa Monica Mountains
* Sweeney Granite Mountains Desert
* Valentine Eastern Sierra
* White Mountain
* Younger Lagoon

Private Conservation Land Trusts

* Agua Hedionda Lagoon
* Arastradero Preserve
* Arroyo Conejo Open Space
* Audubon Canyon Ranch
* Bear Creek Redwoods Open Space Preserve
* Blue Ridge Berryessa Natural Area
* Bluff Lake
* Big Sur Land Trust
* California Rangeland Trust
* Catalina Island Conservancy
* Claremont Canyon Conservancy
* Cosumnes River Preserve
* Fairfield Osborn Preserve
* Land Conservancy of San Luis Obispo County
* Pacific Forest Trust
* Palos Verdes Peninsula Land Conservancy
* Peninsula Open Space Trust
* Pepperwood Preserve
* Sanctuary Forest
* Santa Cruz Island
* Santa Lucia Preserve
* Sempervirens Fund
* Sierra Nevada Alliance
* Sogorea Te Land Trust
* The Nature Conservancy
* Trust for Public Land
* The Wildlands Conservancy

Heritage registers
National Natural Landmarks
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