Quince Orchard High School , also known as Q.O. High School, is a secondary school located on Quince Orchard Road in an unincorporated area of Gaithersburg in Montgomery County, Maryland, United States. Quince Orchard's incoming freshmen come from Lakelands Park and Ridgeview Middle School as well as Roberto Clemente Middle School magnet program. Up until the end of the 2007 school year Quince...