sentences:  At the time of writing, the established procedure is for inbound traffic to fly in over the ski slopes at 9,500 feet, and for departing traffic to fly at or below 8,500 feet.As this airport is at fairly high altitude and routinely experiences density altitudes of 9,000 feet or higher, it's important (perhaps more than usual) for pilots to double-check the performance tables in their aircraft manuals to ensure that they will be able to take off.The flight rules also contain noise abatement procedures that help the airport, its tenants, and its guests to be better neighbors to the community.