Part of what is so problematic about the situation with Mile Hi Skydiving, in Longmont, CO, is that the flights are routinely conducted far from the actual airport. Here is a graphic:
The red box (and the mile-distances) outline the official area approved via the annual letter Mile Hi is required to submit to FAA at Denver TRACON. The gray ellipse marks the typical impact area for a GA airport, centered on KLMO. The green box delineates the more densely populated core of the Longmont community.
Notice the area outlined in orange. This is the area routinely used by Mile Hi’s pilots, as they do long and slow climbs, then position nearly over KLMO for the actual drops. Much of this area is 8- or more miles from the drop zone. Some of it (to the west) is technically outside of the area approved by Denver TRACON.
Note that this operational pattern is not only shifting the noise impacts onto distant communities and residents, but it is also unsafe. Just to the west of Longmont is Longs Peak, Mount Meeker, and other 13,000 to 14,000 foot peaks. Because of the severe altitude to the west, GA flights do most of their flying along a north-south corridor, including over Longmont. Each of these overflights needs to be able to spot Mile Hi’s jump planes … which is much harder to do, when the jump plane is more than a few miles from the actual drop zone.