Big Ten Academic Alliance Geospatial Discovery Portal

Big Ten Academic Alliance Geoportal

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You searched for: highways roads Remove constraint highways roads Subject Transportation Remove constraint Subject: Transportation Time Period 1950-1999 Remove constraint Time Period: 1950-1999
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1. Highways: Iowa, 1993

1993. Jim Giglierano, Mike Bounk, Xingzhi Chen. This coverage contains arcs representing the major primary and secondary highways in the state of Iowa. The data was originally obtained from the I...