Virginia State Police Are Continuing To Search For A Possible Downed Plane In The Smyth Or Grayson County Areas. The Terrain Is Very Rocky, It Has Dense Foliage And Rugged Cliffs That Make Search Efforts By Vehicle And Foot, Very Challenging For Rescue Teams. There Has Been No Aircraft Distress Radio/Emergency Beacon Detected In The Region. Crews Have Been Searching Overnight.