Right around the same time as Epstein, and both right before this.
The Return of the WingMakers AD: Original Discovery Material from circa 1972-1994-1998 Ancient Arrow Project, New Mexico
This is the original and unchanged information regarding the E.T. time capsule archeological discovery known as The Ancient Arrow Project. It is the amazing story of the discovery of an ancient time-capsule found in Chaco Canyon, in northern New Mexico, USA, originally in 1972. After being reported to archeologists of the University of New Mexico, all except one of the artifacts could be carbon dated to the 8th century AD.