The A Area controls air traffic from Portland, Oregon (PDX) north to Vancouver, British Columbia (YVR) and from the Cascade Mountains west to one hundred miles over the Pacific Ocean. This airspace is divided into six non-stratified sectors that serve all users including commercial flights, general aviation and the diverse aircraft and activities of local military bases. One additional sector in the A area underlies both Whidbey RAPCON and Seattle TRACON airspace to provide arrival, departure and en route service over the Everett, WA area, which includes such diverse activities as newly produced Boeing Company heavy aircraft and attendees to the Northwest Experimental Aviation Association Fly-In.