Lakes in Franklin County, Pennsylvania      Caledonia Water Company Pond Cedar Lake Comet Lake Greencastle Reservoir Gunter Valley Reservoir Horseshoe Lake Lake Letterkenny Letterkenny Reservoir Mercersburg Reservoir Mountain Lake Red Run Lake Rocky Spring Lake Shippensburg Reservoir Waynesboro Reservoir Waynesboro Reservoir Wolf Lake OTHER COUNTIES NEARBY District Of Columbia County Allegany County Carroll County Frederick County Howard County Montgomery County Prince Georges County Washington County Adams County Bedford County Blair County Cambria County Cumberland County Dauphin County Fulton County Huntingdon County Juniata County Lebanon County Mifflin County Perry County York County Alexandria City County Arlington County Clarke County Fairfax County Fairfax City County Falls Church City County Frederick County Loudoun County Manassas Park City County Warren County Winchester City County Berkeley County Hampshire County Hardy County Jefferson County Morgan County Pennsylvania Lakes