Skip to content
Above Top Secret
Area 51

Groom Lake: a timeline of what was actually there

The facility was denied for sixty years and acknowledged in 2013. Set the mythology aside and the documented history is a straightforward sequence of aircraft programmes — and it explains most of the sightings.

ATS Research DeskDocuments and archives
2 min read
A dry lake bed in Nevada

The site was chosen in 1955 for a flat dry lake bed, remoteness and existing restricted airspace.

Documented, though only recently. The installation at Groom Lake in southern Nevada was formally acknowledged by the US government in 2013, when a CIA history of the U-2 and OXCART programmes was released under the Freedom of Information Act and named it.

Here is what the record shows was there, when.

The timeline

Illustration

1955. The site is selected for U-2 testing: a flat dry lake bed, extremely remote, adjacent to the Nevada Test Site and therefore already inside restricted airspace nobody was going to question. Construction begins immediately.

1955 to 1959. U-2 development and training. This is the period generating the sightings the CIA history later acknowledged.

1962 to the late 1960s. OXCART. The A-12 is flown from the site, at altitudes and speeds nothing else could reach.

1977 onwards. Have Blue and then the F-117 stealth programme, flown at night.

The 1980s and 1990s. Continued flight test, including — on the public record — acquisition and evaluation of foreign aircraft, principally Soviet types, for exploitation and training. That programme accounts for MiGs operating over Nevada, which is itself a genuinely strange sight.

Why the denial lasted so long

Not because of what was there, but because acknowledging a site means acknowledging that things are tested at it, and the tempo of activity is itself intelligence.

The government did not merely decline to discuss Groom Lake. It denied its existence in litigation, including in a case brought by workers alleging exposure to burning waste — where the position that the facility did not exist was maintained against people who had worked there.

That episode is the strongest documented instance of institutional dishonesty about the site, and it has nothing to do with the sky.

What is genuinely unknown

Current activity. Everything above is history released decades late.

On the pattern established by the U-2, OXCART and F-117 — forty to fifty years from first flight to full documentation — whatever flew there in the 1990s should be reaching declassification now, and current activity will not be public until the 2060s.

Join the discussion

Still open on this one:

  1. 01

    What is due for release next?

    The declassification pattern is regular enough to anticipate. Programmes from the 1980s are entering the window, and requesting them is a more productive act than speculating about today.

Join the discussion

Be the first to comment

Sources

Open them and check for yourself. Where a record is public, it is linked.

  1. The National Security Archive

    George Washington University

  2. US National Archives and Records Administration

    NARA

0 comments