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John Cletheroe's
USA and Canada Holiday Hints |
These markers indicate the distance from a fixed point such as a state line or the start of the road.
Interstate highways always have mile markers in every state.
States vary regarding the presence of mile markers on US Highways and State Highways.
The Blue Ridge Parkway and the Natchez Trace Parkway also have mile markers.
Mile markers are primarily intended for indicating the location of an emergency but they are also an extremely useful aid to navigation.
In most states the Interstate exit numbers agree with the mile markers. In some states exit numbers run sequentially but this is now rare.
Driving - Road Signs, Signposts And Highway Marker Shields
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Most recently modified 21-Jul-02