Clayton is a city in Contra Costa County, California, with a population of approximately 11,070.
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Championship bound! Clayton Valley grinds past Dougherty Valley to advance to NCS Open finals The Mercury News
Salesian vs. De La Salle, Clayton vs. Dougherty: Watch California high school basketball CIF North Coast Sect OregonLive.com
Clayton Valley hires Nathan Kenion as next football coach The Mercury News
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