June 21 is next free entry to national parks

Make your First Day of Summer (June 21) a memorable one when you visit a National Park for free!

~ Appomattox Court House Nat'l Park
~ Assateague Island National Seashore
~ Colonial National Historical Park
~ Great Falls National Park
~ Manassas National Battlefield
~ Petersburg National Battlefield
~ Prince WIlliam Forest Park
~ Shenandoah National Park