Aliso Creek flows underneath the Aliso Creek Road bridge before it enters Aliso and Wood Canyons Wilderness Park.
Map of the Aliso Creek watershed showing major tributaries and cities
|Other name(s)||Alisos Creek, Los Alisos Creek|
|Cities||Laguna Beach, Laguna Niguel, Aliso Viejo, Laguna Woods, Laguna Hills, Lake Forest, Mission Viejo|
|Main source||Loma Ridge in the Santa Ana Mountains
Cleveland National Forest north of Portola Hills
1,704 ft (519 m)
|River mouth||Pacific Ocean
Aliso Beach Park, Laguna Beach
0 ft (0 m)
|Length||19.8 mi (31.9 km)|
|Basin size||34.9 sq mi (90 km2)|
Aliso Creek is a small river in Orange County, California, in the United States. From its source in the Santa Ana Mountains to its mouth at the Pacific Ocean, it is about 19 miles (31 km) long. Its watershed is about 30.4 square miles (79 square kilometers) in size. The name comes from the Spanish word "aliso", meaning alder. Six tributaries join it along its length, which are Wood Canyon Creek, Sulphur Creek, the Dairy Fork, Aliso Hills Channel, Munger Creek and English Canyon.
The creek is heavily polluted. Urban runoff from streets in cities around the creek flow into it, contributing to an increased year-round flow and excessive pollution. To this day, the creek is still a big problem in terms of pollution at its mouth, the popular Aliso Creek Beach.
North along coast
South along coast
Images for kids
Aliso Creek Facts for Kids. Kiddle Encyclopedia.