Did anyone else notice the weird flight restrictions over that Nevada town last month?

Saw this flagged up on FlightAware and couldn't make sense of it at first. The restricted zone was weirdly shaped, not a standard military corridor, and it appeared for about 11 days then just vanished from the records. No NOTAM I could find that covered the full duration.

The thing that gets me is the altitude ceiling was unusually high - well into commercial airspace. Standard test flight restrictions don't usually go that far up unless they're worried about something being visible from cruising altitude. Make of that what you will.

Anyone in the area during that window? Would be good to get some ground-level reports. I've been cross referencing with some unusual radar returns that a contact in the ADS-B community flagged around the same period and theres a possible overlap geographically. Not saying its connected but worth digging into.

Post anything you've got, even if its just a screenshot from a flight tracker app. Crowdsourcing this kind of thing is honestly the only way we make progress.

Seen this pattern before with the restricted zones - the irregular shapes are always the giveaway. Standard military corridors are clean and rectangular, when they go all jagged and weird like that it usually means they're working around something rather than protecting a fixed installation. 11 days is interesting too, that sounds more like an event window than routine ops. @DizzyWarden did you manage to screengrab the shape before it disappeared? Would love to compare it to some stuff I've been tracking around the Nevada/Utah border area.

@DizzyWarden which town exactly? Because if its the one I'm thinking of, that airspace wasn't the only weird thing going on around that time.

Also @CrankyHermit is right about the shapes being the giveaway, standard military corridors are boring rectangles basically, anything that looks like someone drew it freehand after three beers is