https://www.thedrive.com/the-war-zone/2 ... of-area-51
...en dat is dichtbij genoeg...After it flew over Creech AFB, it headed up to Yucca Flat,
where one of America's nuclear weapons assembly plants is located,
and a secretive airstrip that specializes in test flights of unmanned aircraft,
as well as other sensitive Department Of Energy installations.
It then headed over the pockmarked Nevada Test Site.
Area 51 sits just to the east of this location.
The aircraft's panoramic cameras can collect fairly wide swathes of imagery along the Open Skies aircraft's flight path.
The voyage continued north, with Tonopah Test Range to the east,
before heading northeast towards Salt Lake.
It passed somewhat near Dugway Proving Grounds on its way back to Great Falls,
but it's not clear if the aircraft was collecting imagery at that time.
If it was, it was doing so at double the altitude as before.
The Tu-154 flew at an altitude of around 14,000 to 15,000 feet for the part of its trip over Nevada and California,
before climbing out to above 30,000 feet after exiting the NTTR
and heading back to its temporary base of operations in Great Falls.
https://www.thedrive.com/the-war-zone/2 ... of-area-51
The mid-day flight on March 28th, 2019 appears to have originated out of Travis AFB,
located near San Francisco,
and continued on something of a highlights tour of American military installations in California and Nevada.