place

Aliso Creek (Orange County)

Aliso Viejo, CaliforniaGeographic coordinate listsLaguna Beach, CaliforniaLists of coordinatesMission Viejo, California
Rivers of Orange County, CaliforniaRivers of Southern CaliforniaSan Joaquin HillsSanta Ana MountainsUse mdy dates from April 2016
Alisocreek Bridge
Alisocreek Bridge

Aliso Creek is a 19.8-mile (31.9 km)-long, mostly urban stream in south Orange County, California. Originating in the Cleveland National Forest in the Santa Ana Mountains, it flows generally southwest and empties into the Pacific Ocean at Laguna Beach. The creek's watershed drains 34.9 square miles (90 km2), and it is joined by seven main tributaries. As of 2018, the watershed had a population of 144,000 divided among seven incorporated cities.Aliso Creek flows over highly erosive marine sedimentary rock of late Eocene to Pliocene age. What would become the Aliso Creek watershed originally lay at the bottom of the Pacific Ocean, before being uplifted as recently as 10 million years ago. About 1.2 million years ago, the San Joaquin Hills began to uplift in the path of Aliso Creek. Occasionally swollen by wetter climates during glacial periods, the creek carved the deep water gap known today as Aliso Canyon, the main feature of Aliso and Wood Canyons Wilderness Park. Historically, Aliso Creek served as the boundary between the Acjachemem (Juaneño) and Tongva (Gabrieleño) Native Americans. Spanish explorers and missionaries reached the area in the 1700s and established Mission San Juan Capistrano, whose lands included part of the Aliso Creek watershed. In the 1840s the watershed was divided between several Mexican land grants. After California became part of the United States, the ranchos were gradually partitioned and sold off to farmers and settlers; starting in the 1950s, real estate companies acquired most of the land for development. By the 21st century, more than 70 percent of the Aliso Creek watershed was urbanized. Most of the creek's course has been channelized or otherwise impacted by development. Pollution and erosion from urban runoff have become chronic issues. However, parts of the creek remain free flowing and provide important regional wildlife habitat, especially in the Aliso Canyon section. The creek has recently been the focus of projects to restore the stream channel and improve water quality.

Excerpt from the Wikipedia article Aliso Creek (Orange County) (License: CC BY-SA 3.0, Authors, Images).

Aliso Creek (Orange County)
Pacific Coast Highway,

Geographical coordinates (GPS) Address Nearby Places
placeShow on map

Wikipedia: Aliso Creek (Orange County)Continue reading on Wikipedia

Geographical coordinates (GPS)

Latitude Longitude
N 33.510555555556 ° E -117.7525 °
placeShow on map

Address

Pacific Coast Highway
92651
California, United States
mapOpen on Google Maps

Alisocreek Bridge
Alisocreek Bridge
Share experience

Nearby Places