The Yuba River, a tributary of the Feather River in California, is located about 2 hours outside of San Francisco in Sacramento Valley. The main stem of the river is about 40 miles long and its headwaters are split into North, Middle and South forks; the confluence of the former two is considered the beginning of the Yuba.South Yuba River State Park stretches from Malakoff Diggins State Historic Park to the Bridgeport Covered Bridge, which has the longest clear span of any surviving covered bridge in the world.CS and friends spent the day swimming and hiking in the park this last weekend, and despite a pretty brutal fall by yours truly that left some cuts and bruises on face, ribs and hand, it was a pretty beautiful (and hot as hell) day.