Claim: CFB Trenton is only accessible by air travel.
Evidence: Canadian Forces Base Trenton (IATA: YTR, ICAO: CYTR) (also CFB Trenton), formerly RCAF Station Trenton, is a Canadian Forces base located within the city of Quinte West, Ontario. It is operated as an air force base by the Royal Canadian Air Force (RCAF) and is the hub for air transport operations in Canada and abroad. CFB Trenton is Canada's largest Air Force base.