For those that fancy a punt at this, two very famous aviators visited this site in its' early days.

West or East of the Mississippi?

West of the Mississippi.

Ea200,
perhaps the route you have flown when you past overhead will shed some light on the location of the sheds?

It would be very generous. Suffice it to say, I was in tourist mode and wanted to see some of the well known scenery in this area. As I recall, the airfield was still shown on the sectional in the 80s but it is not now.

South of the Mason-Dixon Line (as extended)?

lets take the Missouri Compromise line (Parallel 36°30′ north)

South of that.

Does the State Flag have an ursine character?

It is not in the Golden State.

Arizona?

Would this be one of them?
https://cimg5.ibsrv.net/gimg/pprune....c727a3c2b.jpeg

Indeed it would, and it is in Arizona.

Can't post links but if you look up "historical airfields arizona" Red Butte looks suspiciously similar?

Well done Ombinda, it is Red Butte. Opened 1927 and visited by Lindbergh and Amelia Earhart who had her aircraft serviced there. Fell out of use after the opening of the new Grand Canyon airport in 1967. I am pretty sure I know how Bear found it so quickly. I used all the info available at that time and contructed a search that found it in less than 10mins. Note to self, do my own search before posting in future. Thanks to Bear and Thnarg for letting others keep searching.

Ombinda has control.

https://cimg9.ibsrv.net/gimg/pprune....a2e82ed584.jpg

Pretty obviously not in regular use anymore. But I know some people who have landed there and would love to visit this spot myself.

Church, desert, no sign of bomb/shell damage

Doesn't look like Las Vegas...........................

That church IS interesting tho' can't recollect seeing one quite like that.

S America?

Alamagordo just far enough away from ground zero?

Cold, very cold.

I’m no christian but that looks like a German lutheran church, so…

Well if that is so ..... German deserts? Not Samoa, so S. Morocco or Namibia I guess................