You live in Pueblo? My thought would be they're flying from Carson to the Pinion Canyon training area East of Walsenburg.
When I was stationed at Fort Bragg the barracks I lived in was directly under the flight path from the airfield to the training areas so it wasn't uncommon to have an entire squadron of Apaches flying over at probably 500' AGL. After a while it just blended in with the background noise and honestly, it was a lot less intrusive than when the artillery units were doing their night firing training.