A U.S. flag measuring nearly two acres was trucked to Spaceport America and unfurled for cleaning. The effort required a crane and dozens of volunteers.
Then a sand storm welcomed them to New Mexico.
https://www.abqjournal.com/news/spaceport-america-hosts-cleaning-of-mammoth-us-flag/3003687

Great American Flag cleaned at Spaceport America ahead of nation’s 250th anniversary
Volunteers at Spaceport America in southern New Mexico helped hand-scrub the 86,000-square-foot Great American Flag, a nearly two-acre U.S. banner brought from Pittsburgh for a rare cleaning before the country’s 250th anniversary.
