Notable several days ago. Colorado is similar in terrain and altitude to Afghanistan. So ya. Training. Regularly. This is nothing new. Drones are constantly operating out there.
Cannot speak to an uptick in activity, perhaps an uptick in training for certain types of missions or drone operators qualifying for certain types of ops… but ya…. Colorado anons in the know, know this isn't anything spoopy.
It wouldn't surprise me to see moar "17" of this or "17" of that type stories start showing up in the mainstream as click bait. First thing I think is "Is it really 17, like you were seeing the tail numbers on the drones? 17 specifically and not one or two that are circling or covering the same ground?"