Case file · Secret facility (alleged)

Sugar Grove listening station

A Navy radio station in a remote Pendleton County valley inside the National Radio Quiet Zone, long reported to host NSA satellite-intercept work.

1969 CE · 38.52, -79.28 · status: official

The account

It was frequently named in reporting on the ECHELON intercept network. The Navy closed it in 2015 and the site was sold.