Santa Ana River - Wikipedia
It rises in the San Bernardino Mountains and flows for most of its length through San Bernardino and Riverside counties, before cutting through the northern Santa Ana Mountains via Santa Ana Canyon and flowing southwest through urban Orange County to drain into the Pacific Ocean.
Santa Ana River Conservancy – California State Coastal …
Flowing nearly 100 miles from its northernmost reaches at the crest of the San Bernardino Mountains out to the coast near Huntington Beach, the river runs through wild lands, agriculture, parks, towns, and cities, touching the lives of millions of Californians.
SAWPA - Santa Ana Watershed Project Authority - Welcome
Jan 6, 2025 · SAWPA’s work in the Santa Ana River Watershed advances projects and programs that build water resiliency and promote collaborative, innovative responses to water planning, all of which help address drought conditions.
The Santa Ana River: How It Shaped Orange County
Nov 29, 2012 · Rising in Southern California's Transverse Ranges, the Santa Ana is an ancient river; geologists suspect that the river's course predates the uplift of the Santa Ana Mountains, which the river cuts straight through at Santa Ana Canyon.
Santa Ana River Science and Conservation Symposium
The Santa Ana River Symposium is celebrating its 6th year! Established in 2018, this event was designed to spotlight the threatened native species and habitats of the Santa Ana River Watershed.
Santa Ana River Project | OC Infrastructure Programs California
The Santa Ana River Mainstem Project is located along a 75-mile reach of the Santa Ana River in Orange, Riverside and San Bernardino counties. The plan for flood control improvements includes three principal features: Lower river channel modification for flood control along the 30 miles of the Santa Ana River from Prado Dam to the Pacific Ocean.
Santa Ana River Trail » The Wildlands Conservancy
The Santa Ana River begins in the San Bernardino Mountains, flowing through the urban core of San Bernardino, Riverside, and Orange Counties before reaching the Pacific Ocean at Huntington Beach. After decades of advocacy, the 110-mile Santa Ana …
The Unseen River - ArcGIS StoryMaps
Apr 28, 2024 · The Santa Ana River is the largest river in Southern California. It traverses an area that is home to nearly 2/3rds the state population. However, for many Southern Californians, the river is surprisingly unseen and unknown.
Santa Ana River Native Fish Study | U.S. Geological Survey - USGS.gov
Feb 27, 2024 · Native Fish Population and Habitat Study, Santa Ana River, California. The Santa Ana River, the largest river in southern California, flows through diverse landscapes, from the high desert to urban and suburban areas in Orange, Riverside, and San Bernardino Counties, stretching approximately 96 miles (154 kilometers) from its headwaters in the ...
Santa Ana River - Water Education Foundation
Sep 15, 2014 · Southern California’s Santa Ana River is the largest watershed drainage south of the Sierra and is located largely in a highly urbanized, highly regulated setting. At about 100 miles long and with more than 50 tributaries, the Santa Ana spans parts of San Bernardino, Riverside and Orange counties as it drains 2,840 square miles of land.