A nine-year-old girl who went missing in Samuel P. Taylor State Park on Friday was found 21 hours later, on Saturday morning, by two bikers who live in the San Geromino Valley. The search and rescue operation enlisted the help of teams from eight nearby counties, according to multiple reports. About 200 workers convened to hunt for Ida Rothschild, a brown-haired girl with bangs who was wearing a pink-and-white terry cloth sweater and orange leggings,…