Laguna Niguel, California

Sulphur Creek is a 4.5-mile (7.2 km) tributary of Aliso Creek in Orange County in the U.S. state of California. The creek drains about 6 square miles (16 km2) of residential communities and parks in the southern San Joaquin Hills. The Sulphur Creek watershed was once part of the territory of the semi-nomadic Acjachemen Native Americans, who were conquered by Spanish conquistadors in the 17th and 18th centuries and called the Juaneño after nearby Mission San Juan Capistrano. During the 19th century, the watershed became part of a rancho and was mostly agricultural and range land until the 1960s, when suburban residential development began in the watershed. Sulphur Creek Dam was built in 1966, forming Laguna Niguel Lake. Today, the Sulphur Creek drainage basin includes parts of Laguna Niguel, Laguna Hills, and San Juan Capistrano. The creek also flows through parts of Laguna Niguel Regional Park and Aliso and Wood Canyons Regional Park. Urban runoff has changed the once seasonal creek into a permanent stream. Most of the creek has been channelized to control flooding and prevent erosion, although some sections still include riparian habitat.

Laguna Niguel Lake, formerly known as Sulphur Creek Reservoir, is an artificial 44-acre (180,000 m2) fishing and recreational lake in Laguna Niguel, California. It is created by the Sulphur Creek Dam, which was completed in 1966. It is located at 33°32′59″N 117°42′22″W and is 190 feet (58 m) above sea level. It is fed from two sources, one of which is Sulphur Creek itself and the other, a storm drain. It is accessed from La Paz Road, which runs along its east shore. Surrounding the reservoir is the Laguna Niguel Regional Park. In addition, within the lake on the large island is a protected bird sanctuary. There is a fee to access the park and lake which costs $3 on weekdays, $5 on weekends, and $7 on holidays.

Laguna Niguel Regional Park is a public park in Laguna Niguel, in southern Orange County, California. Its main feature is Laguna Niguel Lake (also known as Sulphur Creek Reservoir), located within the park's boundaries. Laguna Niguel's 4th of July fireworks show is held at the park every year.

Sulphur Creek Dam is a dam across Sulphur Creek in Orange County, California. The dam creates Laguna Niguel Lake and is entirely within the city of Laguna Niguel. The reservoir is used for water reclamation storage and recreation, and is the main attraction of Laguna Niguel Regional Park, which surrounds it.

Rancho Niguel was a 13,316-acre (53.89 km2) Mexican land grant in the San Joaquin Hills, within present-day Orange County, California. It was granted in 1842 by Governor Juan B. Alvarado to Juan Avila. The rancho was named for a local Indian village called "Niguili." The grant extended along the Pacific coast from Laguna Canyon and Laguna Beach, past Aliso Creek to Dana Point and San Juan Creek. The rancho encompassed those present-day places and Laguna Niguel, Aliso Viejo, and Laguna Hills.

The Roger Y. Williams House (also known as the Swanner House) is a home in San Juan Capistrano, California. Built in 1923, it was listed on the National Register of Historic Places in 2007. The listing included two contributing buildings and a contributing structure, plus agricultural fields.The property includes a two-story Craftsman house, a matching watertower and a matching garage, all built in 1923.

The Chet Holifield Federal Building, colloquially known as "the Ziggurat Building", is a United States government building in Laguna Niguel, California. It was built between 1968 and 1971 for North American Aviation/Rockwell International, and designed by William Pereira. Since 1974 it has been owned and managed by the General Services Administration. National Archives and Records Administration had holdings for the Pacific region stored here, but has since moved to another location. Primary tenants are now regional offices of the United States Department of Homeland Security and the Internal Revenue Service.

Oso Creek is an approximately 13.5-mile (21.7 km) tributary of Arroyo Trabuco in southern Orange County in the U.S. state of California. Draining about 20 square miles (52 km2) in a region north of the San Joaquin Hills and south of the Santa Ana Mountains, the creek is Trabuco Creek's largest tributary, and is part of the San Juan Creek drainage basin. Beginning in the foothills of the Santa Ana Mountains near the city of Mission Viejo, the creek is dammed twice to form Upper Oso Reservoir and Lake Mission Viejo. The creek is channelized and polluted along much of its length. "Oso", meaning bear in the Spanish language, was likely the name given to the creek by Spanish conquistadors. Up to the 1970s, the Oso Creek watershed was mostly undeveloped and the creek ephemeral. The watershed lies close to two major wilderness areas - Aliso and Wood Canyons Wilderness Park to the southwest and O'Neill Regional Park to the west, on Trabuco Creek - but has no major parks within its boundaries. Interstate 5 parallels the creek for over half of its length.

Aliso Niguel High School (ANHS), which is part of the Capistrano Unified School District, is located in the city of Aliso Viejo, California. Most of its students reside in the communities of Aliso Viejo and Laguna Niguel. The school is a California Distinguished School, a National Blue Ribbon School, and a New American High School. Aliso Niguel was ranked as number 252 in Newsweek's 2016 list of the top 500 high schools in the nation.

Capistrano Valley High School (often called CVHS or Capo) is a public high school at the southern border of Mission Viejo, California, USA, that is run by the Capistrano Unified School District. It is set on a hilltop overlooking the San Diego Freeway (I-5) corridor and Saddleback Mountain. It is located on Via Escolar, off the Avery exit of the I-5. The school attendance boundaries primarily serve students from eastern, southern and northern Mission Viejo (the entire portion of the city in CUSD) and a small northern portion of San Juan Capistrano. CVHS is a California Distinguished School, National Blue Ribbon Finalist, and was ranked as number 488 in Newsweek's 2008 list of the top 1,300 high schools in the USA. By this standard, CVHS falls in the top 2.5% of US high schools. It is the highest ranked for the school district and second highest rank between both Saddleback Valley and Capistrano Unified that serve south Orange County.

Aliso and Wood Canyons Wilderness Park is a major regional park in the San Joaquin Hills of Orange County, California in the United States. Comprising 4,500 acres (1,800 ha) of rugged coastal canyons, open grassland, and riparian woodland, the park borders the suburban cities of Aliso Viejo, Dana Point, Laguna Beach, Laguna Hills and Laguna Niguel and lies within a portion of the ancestral homeland of the indigenous Acjachemen people.Aliso and Wood Canyons is part of a larger park complex known as the South Coast Wilderness. Surrounded by heavy suburban development and the Pacific Ocean, it is an important regional wildlife preserve. The park includes trails for hiking, mountain biking, and horseback riding; a greenbelt and bikeway along Aliso Creek; and various geological features such as caves, springs, and exposed marine fossil beds. The park is administered by the County of Orange under the OC Parks Department. The name Aliso originated in the 18th century when Spanish explorers named Aliso Creek, probably for the Alnus rhombifolia (white alder) tree native to the area. Wood Canyon was likely named for the groves of California live oak and sycamores that are found in the canyon. In 2021, the park was designated by the Old Growth Forest Network for its old live oak and sycamore trees.

Laguna Niguel/Mission Viejo is a station on the Inland Empire–Orange County Line and Orange County Line of the Metrolink commuter rail system around Southern California. Originally built to serve Metrolink, the station became a stop for Amtrak's Pacific Surfliner in 2007 but is currently not used as a limited Amtrak stop on the Pacific Surfliner route. Total daily ridership for Metrolink and Amtrak was about 500 passengers in fiscal year 2009. Of the 73 California stations served by Amtrak, Laguna Niguel/Mission Viejo was the 71st-busiest in FY2010, boarding or detraining an average of approximately seven passengers daily. Metrolink trains terminate here and if they do by noon time, one train set moves over to a nearby siding track until the rush hour.