The post-stormtrooper-visit-sandcrawler-set in its second location, a rock canyon.
I’ve got nothing…
But The Making of Star Wars does (p156), which you should own if you’re reading this I might add. The Sandcrawler set, as seen here anyway - it was later moved to a canyon - was placed near the border between Tunisia and Libya, and had to be inspected by the Libyan army, who suspected it to be part of a military mobilization.
The set itself only reached a couple of meters above frame, as you can see in this photo.
Also it cost $128.000 anno 1976.
PS: No wonder ‘red’ blew a casket, check out that guy pulling all the wires out of him!