Where did California's beaches get their sand?

Scientists have cracked one of the enduring geological mysteries of Southern California’s famed beaches: where the sand comes from.

Erosion equation: More storms mean less sand and more dangerous

California Beaches Near Me - Second House on the Right

Mountains to Shoreline: The Geologic Journey of Southern

Southern California coastal towns are losing valuable sand

California's Colorful Beach Sand - Black, White, Purple & More

Iconic California beaches have lost most of their biodiversity

Coastal bluffs provide more sand to California beaches than

Can we save California's beaches by leaving them alone? - Los

Southern California coastal towns are losing valuable sand

California beach tips -- what to wear, where to go

California beach access is free for all – Daily News

Driving on the Beach in Pismo & Oceano Dunes Recreation Area

Sea level changes could erode California beaches by end of century

Monterey Bay, California: Beach Sand Mining from a National Marine