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Interchange 18, Maryland
Interchange 18 is a crossing located in Howard County, MD at N39.22233° W76.71941° (NAD83) and at an elevation of 160 ft MSL.
It can be seen on the USGS 1:24K topographic map Relay, MD.
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Here are some other places near Interchange 18 that may be of interest:
Note: Coordinates in the location and feature list above are referenced to NAD83 datum.