U.S. Government UFO Document: “TITLE: PROJECT GRUDGEIncident, Caballo Dam, New Mexico24 April 1949”

(Project Grudge, U.S. Air Force, Washington, D.C.)

Source: Project Blue Book Archive (bluebookarchive.org)

Quote from the document (Page 1):

“Information was requested by Technical Intelligence Division, Hq, Air Materiel Command, Dayton, Ohio, to interview all witnesses to the ‘unidentified object’ sightings referred to in copy of TWX from CSAF, which occurred near Caballo Dam, New Mexico on 24 April 1949.”

http://bluebookarchive.org/page.aspx?PageCode=NARA-PBB88-575 (Page 1)

http://bluebookarchive.org/page.aspx?PageCode=NARA-PBB88-576 (Page 2)

http://bluebookarchive.org/page.aspx?PageCode=NARA-PBB88-577 (Page 3)

Aerial view of the Caballo Dam, New Mexico

(wikimedia.org photo)