does not have direct access to Pigeon Key; people going there must bike or walk on of the Old Seven Mile Bridge from its eastern end on Knight's Key, take a shuttle bus, or take a boat to reach the island. Mile markers The Florida Department of Transportation ("FDOT") maintains mile marker signs in the Florida Keys portion of Monroe County along the Overseas Highway (U.S. Highway No. 1). Numbering commences at "0" in Key West, and increases towards the east until Islamorada where the direction changes to the northeast following the Overseas Highway to Key Largo at "106." Outside of the city of Key West and the city of Marathon, street addresses along the Overseas Highway in the Keys correspond to the mile markers. For example, the Tropical Research Laboratory of Mote Marine Laboratory has a physical address of 24244 Overseas Highway. The first two digits indicate that the Laboratory is located at Mile Marker 24 (corresponding to an address on Summerland Key). The next two digits indicate that it is about a quarter of a mile east of the Mile Marker 24 sign (MM 24.24), while the last digit, because it is an even number, indicates that it is located on the gulf side of the Overseas Highway (the term "gulf side" is used in the Middle and Lower Keys as the Overseas Highway runs east-west there; the term "bayside" is used in the Upper Keys where the Overseas Highway runs north-south. All of the Keys use the term "oceanside"). The first two-to-three digits denote the Mile Marker, while the next digit denotes the nearest tenth of a mile (e.g., MM 102.5). An address ending in an odd number indicates the location is on the Atlantic or oceanside of the Overseas Highway, while an address ending in an even number indicates the location is on the Florida Bay/Gulf of Mexico or bayside of the Overseas Highway. Exceptions to this rule do exist, however. There are occasional addresses ending in even numbers on the oceanside and vice versa. Trail In 2001, the Monroe County Commission, the Florida Department of Environmental Protection's Office of Greenways and Trails, and FDOT entered into a Memorandum of understanding to create the Florida Keys Overseas Heritage Trail (FKOHT). The trail will be a multi-use bicycle and pedestrian facility that will traverse the Florida Keys from Key Largo to Key West. Upon completion, the FKOHT