airlines aviation Grand Canyon National Park to Commemorate Designation of New National Historic Landmark 1956 Grand Canyon TWA-United Airlines Aviation Accident Site By www.nps.gov Published On :: Tue, 17 Jun 2014 03:15:00 EST The National Park Service (NPS) today announced plans to dedicate one of the nationâs newest National Historic Landmarks, the 1956 Grand Canyon TWA-United Airlines Aviation Accident Site in Grand Canyon National Park. This site commemorates a horrific airline collision over the Grand Canyon in 1956. https://www.nps.gov/grca/learn/news/1956-nhl-designation.htm Full Article
