Marshall Gold Discovery State Historic Park is a state park of California, marking the discovery of gold by James W. Marshall at Sutter's Mill in 1848, sparking the California Gold Rush. The park grounds include much of the historic town o... Read more >

The Hayward Area Recreation and Park District, known locally as "H.A.R.D.," is an independent special use district created to provide park and recreation services for over 280,000 residents.... Read more >

Indian Grinding Rock State Historic Park is a California State Park, preserving an outcropping of marbleized limestone with some 1,185 mortar holes—the largest collection of bedrock mortars in North America. It is located i... Read more >

Native California fan palms thrive in many locations but rarely in such numbers as in the canyons of the Indio Hills. Here, along a line where the San Andreas fault captures groundwater that nurtures the palms, is a wild parkland which is ... Read more >

Jack London State Historic Park, also known as Jack London Home and Ranch, is a California State Historic Park near Glen Ellen, California, situated on the eastern slope of Sonoma Mountain. It includes the ruins of a house burned a few mon... Read more >

The John Muir National Historic Site is located in the San Francisco Bay Area, in Martinez, Contra Costa County, California. It preserves the 14-room Italianate Victorian mansion where the naturalist and writer John Muir lived, as well as ... Read more >

Covering large areas of the Colorado and Mojave Deserts and the Little San Bernardino Mountains, this desert landscape is populated by vast stands of Joshua trees. Large changes in elevation reveal various contrasting environments includin... Read more >

Home to several giant sequoia groves and the General Grant Tree, the world's second largest measured tree, this park also features part of the Kings River, sculptor of the dramatic granite canyon that is its namesake, and the San Joaquin R... Read more >

La Purisima Mission State Historic Park is a state park unit of California, containing La Purisima Mission, considered to be the most completely restored Spanish mission in California. Ten of the original buildings are fully restored and f... Read more >

Lassen Peak, the largest plug dome volcano in the world, is joined by all three other types of volcanoes in this park: shield, cinder dome, and composite. Though Lassen itself last erupted in 1915, most of the rest of the park is continuou... Read more >

Los Angeles County Arboretum & Botanic Garden is located in Arcadia, CA.

Daily visiting hours are 9am to 5pm with last entry at 4:30. Members early entry is at 8am.  Purchase your tickets online in advance.

ArbNet Accredited... Read more >

Los Angeles State Historic Park (LASHP) is a state park unit in development within the Chinatown neighborhood of Los Angeles, California. Also known as the Cornfield, the former brownfield consists of a long open space between Spring Stree... Read more >

Malakoff Diggins State Historic Park is a state park unit preserving the largest hydraulic mining site in California. The mine pit and several Gold Rush-era buildings were listed on the National Register of Historic Places as the Malakoff ... Read more >

Marsh Creek State Historic Park (fka Cowell Ranch / John Marsh State Historic Park) encompasses 3,659 acres of natural habitat, wildlife, and unique cultural features, including the historic John Marsh Home.

DAY-USE ACTIVITIES & ... Read more >

Olompali State Historic Park is a 700-acre (2.8 km2) park in Marin County, California, 3.5 miles (5.6 km) north of Novato, California, overlooking the Petaluma River and San Pablo Bay. In 1977 the State of California purchased Rancho Olomp... Read more >

Pigeon Point Light Station or Pigeon Point Lighthouse is a lighthouse built in 1871 to guide ships on the Pacific coast of California. It is the tallest lighthouse (tied with Point Arena Light) on the West Coast of the United States. It is... Read more >