Keywords: Chesapeake and Ohio Canal National Historical Park (map).jpg Chesapeake_and_Ohio_Canal_National_Historical_Park_ map svg Map of the Chesapeake and Ohio Canal National Historical Park ” along the former Chesapeake and Ohio Canal between Cumberland Maryland and Washington D C USA United States National Park Service website for Chesapeake and Ohio Canal National Historical Park http //www nps gov/choh/planyourvisit/parkmaps htm 2005-10 National Park Service US Department of the Interior Public domain - original work of the US Federal Government PD-USGov Chesapeake Ohio Canal National Historical Park 01 Potomac River 2005 Maps of protected areas of the United States Chesapeake Ohio National Capital Parks of the United States Chesapeake Ohio |