Buckhorn, Ventura County, California

Piru ( ) is a small unincorporated historic town located in eastern Ventura County, California, in the Santa Clara River Valley near the Santa Clara River and Highway 126, about seven miles (11 km) east of Fillmore and about 13 miles (21 km) west of Interstate 5. Lake Piru, in the Los Padres National Forest, is the main recreational attraction. The population was 2,063 at the 2010 census, up from 1,196 when the 2000 census was enumerated. For statistical purposes, the United States Census Bureau has defined Piru as a census-designated place (CDP), which does not precisely correspond to the historical community.

The Piru Mansion is a Queen Anne Style home located in Piru, California.

Warring Park is a California Historical Landmark as it is the site that Portolà expedition found the Chumash people group known as the Piru Indian tribe August 11, 1769. This site is in the current town of Piru, California in Ventura County. The site became California Historical Landmark number 624 on October 31, 1957. The Site is just west of Piru Creek and north of Lake Piru.The Portolà expedition was a first Spanish voyage of exploration started in 1769 and ending in 1770. It was the first recorded European exploration of the interior of the present-day California. The leader was Gaspar de Portolà who became the governor of Las Californias. After the expedition, Spain founded Alta California. They built missions, Pueblos, and Presidio-forts. The California Historical Landmark reads: On August 11, 1769, the explorers and priests accompanying Portolá found a populous village of Piru Indians near this point. Carrying their bowstrings loose, the Indians offered necklaces of stones, in exchange for which Portolá presented them with beads.

Piru Creek is a major stream, about 71 miles (114 km) long, in northern Los Angeles County and eastern Ventura County, California. It is a tributary of the Santa Clara River, the largest stream system in Southern California that is still relatively natural. The creek drains an area of about 497 square miles (1,290 km2), making it the Santa Clara River's biggest tributary in terms of watershed size. Most of the creek above Lake Piru is located in the Los Padres National Forest. There are two major reservoirs on Piru Creek, Lake Piru and Pyramid Lake, which respectively store water for local irrigation and the California State Water Project.

Rancho Camulos, now known as Rancho Camulos Museum, is a ranch located in the Santa Clara River Valley 2.2 miles (3.5 km) east of Piru, California and just north of the Santa Clara River, in Ventura County, California. It was the home of Ygnacio del Valle, a Californio alcalde of the Pueblo de Los Angeles in the 19th century and later elected member of the California State Assembly. The ranch was known as the Home of Ramona because it was widely believed to have been the setting of the popular 1884 novel Ramona by Helen Hunt Jackson. The novel helped to raise awareness about the Californio lifestyle and romanticized "the mission and rancho era of California history."The 1,800-acre (7 km2) working ranch is a prime example of an early California rancho in its original rural setting. It was the source of the first commercially grown oranges in Ventura County. It is one of the few remaining citrus growers in Southern California. State Route 126 bisects the property, with most of the main buildings located south of the highway, and a few buildings on the north. The main adobe is one of the few extant Spanish Colonial buildings left in the state. Most of the other buildings are done in Mission Revival or Spanish Colonial Revival styles, both of which are derivatives of the original. Rancho Camulos is designated a National Historic Landmark, listed on the National Register of Historic Places, and has also been designated as a California Historical Landmark. Many of the buildings and grounds are open to the public as a museum of this period in California history.

Hopper Mountain National Wildlife Refuge is located in the Topatopa Mountains of Ventura County, in southern California. It is bordered by the Los Padres National Forest and the Sespe Condor Sanctuary to the north. The 2,471-acre (10.00 km2) refuge was established in 1974 to protect the endangered California condor, its habitat, and other wildlife resources. The refuge is in rugged, mountainous terrain. Primary habitats include annual grasslands, interspersed with oak and California black walnut groves, with chaparral on the steeper slopes, natural water springs and riparian habitat, and a freshwater marsh. The California black walnut community is considered to be a unique habitat in California, and is recorded in the State Natural Heritage Database. The refuge provides habitat for more than 130 species of birds, mammals, and reptiles, including the southwestern pond turtle—a California species of special concern--black bear, bobcat, mule deer, golden eagle, and California tree frog. More than 200 plant species have also been documented on the refuge. Hopper Mountain National Wildlife Refuge plays an integral part in the California Condor Recovery Program, providing foraging and roosting habitat for the bird. The refuge shares information about the Condor Recovery Program through an outreach program that extends to local, national and international publics. The refuge is closed to public use to protect habitat for the endangered California condor and to support ongoing efforts to reintroduce California condors to the wild. The road to the refuge runs through private lands, and the road itself is inaccessible to the general public. The U.S. Forest Service maintains two observation points in Los Padres National Forest. As of July 2014, there is a total population of 437 condors living in sites in California, Baja California and Arizona. This includes a wild population of 232 and a captive population of 205. 68 free-flying condors are managed by the US Fish & Wildlife Service in Southern California.

Happy Camp Canyon Regional Park is a 3,000-acre (1,200 ha) regional park located in the eastern foothills of Moorpark, California. The park has been run by the Mountains Recreation and Conservation Authority since 1990.

Fillmore station is a former train station in Fillmore, California. It was built by the Southern Pacific Railroad in 1887 as a stop along its Coast Line between Los Angeles and San Francisco. It served as a nucleus for development, with the town of Fillmore growing around the site. Passenger service ended in 1935, though the building continued to be used for freight operations until 1974.Facing destruction after falling out of use, Edith Jarrett Roderick purchased the building for $1.05 in March 1974 and had it moved across Main Street where it was turned into a museum. It was listed as a Ventura County Historic Landmarks & Points of Interest in 1979. The 1994 Northridge earthquake caused extensive damage to the building, necessitating repairs which lasted into 1995.The Fillmore and Western Railway used the former station site as a stop for excursion tours starting in 1995. The turntable was installed in 2011 after it was purchased from the Canadian National Railway.

The Fillmore and Western Railway (reporting mark FWRY) was a heritage railway which operated on track owned by the Ventura County Transportation Commission. Visitors to Fillmore would see filming activity as well as sets and support equipment at the company's rail yard and along the tracks between Santa Paula and Piru. They stopped operating on the line in 2021.

Fillmore Towne Theatre is a former vaudeville and movie theater in Fillmore, California and is a landmark in downtown. Built in 1916, the single-screen theater showed silent films.

Fillmore High School (FHS) is a public comprehensive high school serving grades 9–12 in Fillmore, California, United States that opened in 1912. It is one of two high schools in the Fillmore Unified School District, the other being Sierra High School, a continuation school.Fillmore High School offers twelve Advanced Placement classes and twelve sports.

Fillmore is a small city in Ventura County, California, United States, in the Santa Clara River Valley. In an agricultural area with rich, fertile soil, Fillmore has a historic downtown that was established when the Southern Pacific built the railroad through the valley in 1887. The rail line also provided a name for the town: J. A. Fillmore was a general superintendent for the company's Pacific system. The population was 16,419 at the 2020 census, up 9.4% from 15,002 during the 2010 census.