In a clash of vision and politics, the battle for the Santa Ana River Conservancy has begun. Some in Orange County would like to see the watershed and the river protected as it flows to the ocean.

So the U.S. Army Corps of Engineers creating the concrete-lined channel of the L.A. River to mitigate future floods. Santa Ana River (Orange ... the Ventura River flows through Foster Park.

The Santa Ana River, born of snowmelt and natural springs near Big Bear Lake, flows through Southern California as one of the region’s most scenic rivers — until it hits Orange County.

The cast made the shuffling seem especially alarming, but Mitchell, the author of a new book about the 110-mile, meandering, misunderstood Santa Ana ... river at that point,” he says. It flows ...

The rivers in Southern California are an enigma, and by some observer’s standards, their meager, seasonal flows wouldn ... 10 times larger than the Santa Ana River, which is the largest ...