Obviously nobody here has worked out of Tuweep, AZ. Talk about busy. Once I saw two airplanes land there within a one month period. Soon there was talk about putting in a tower. Then about paving the runway. Even about cutting down the weeds so we could find the runway. After the second airplane landed you could hear everyone thinking, "well, there goes the neighborhood." Next thing you know, the federal government steps in and puts a boatload of restricted airspace about the place. I have no idea what would happen if they got a third airplane in, but you can bet it would involve the invocation of a clearance delivery and possibly even a fuel truck...
GCN is a really busy place. With four to five patterns going for the same airport and frequently three or four stacks of aircraft holding just outside the airport, it's almost always strictly VFR. I've seen dual right and left inner and outer patterns going simultaneously to one runway, with the addition of several helicopter patterns and overhead patterns...all full. That's an inner and outer left down wind, and right downwind, and overheads to both, plus the helicopter ops.
The busiest airspace, without question, is between my soon-to-be-ex-mother-in-law's ears. You can actually look in through one ear, or a cavernous nostril, and see little balls of light and thousands of demonic fairies flying around in there. It's not a pretty sight.
