What is the highest number or distance on a milemarker?
The Alaska Highway ( http://www.themilepost.com/history.html ) has both MM 1421 in AK (distance) and km 1962 in the Yukon (number). See also 3.8 and 3.4.1 . Jun 15, 2002 10.3.3 Q: Where is there an Exit 0? A: Some U.S. states place Exit 0’s on their highways in some or all cases where the exit falls between Mile 0 (southern or western terminus or entry into the state) and Mile 1. States/territories with Exit 0’s are AL, CO, IN, IA, KY, MT, NM, PA, PR, TX, and WV. http://groups.google.com/group/misc.transport.road/browse_frm/thread/188f573a8cc0d2e3 , http://groups.google.com/group/misc.transport.road/browse_frm/thread/ccff960128ae3f4c , and http://groups.google.com/group/misc.transport.road/browse_frm/thread/8598f60ea34cdc41 are three discussions on Exit 0’s (the state list in this question was compiled from the initial post of the third [2002] discussion and its subsequent corrections). Other discussions may be found at http://groups.google.com/groups?q=%22exit+0%22+group:*road . The M
