Date of sighting: June 17, 2013
Location of sighting: Allegheny, Pennsylvania, USA
Source: MUFON Case #48223
Driving tractor and trailer south in PA. Looked up and saw an object hovering over the mountain top. About that time other truckers were heard on the CB chatting about seeing the same thing. The object was quite a distance away, but was still very visible. So actual size was very big. Not sure of the exact location, however it was close to the Allegheny Tunnel.