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Start Over Subject transportation Year 1997 Bounding Box -40.000931 39.999015 -39.999064 40.000987

1. Global GIS : Airfields

Datasets Harvard University Restricted content
1997. United States. National Imagery and Mapping Agency. This datalayer is a point coverage representing airports and airfields worldwide and was published as part of the USGS Global GIS : global coverage... American Geological Institute.

2. Global GIS : Hydrography danger points

Datasets Harvard University Public content
1997. United States. National Imagery and Mapping Agency. This datalayer is a point coverage representing worldwide navigational hazards or dangers near ocean and navigable lake coastlines and was publishe... American Geological Institute.

3. Global GIS : Railroads

Datasets Harvard University Restricted content
1997. United States. National Imagery and Mapping Agency. This datalayer is a polyline coverage representing railroads worldwide and was published as part of the USGS Global GIS : global coverage database.... American Geological Institute.

4. Global GIS : Roads

Datasets Harvard University Restricted content
1997. United States. National Imagery and Mapping Agency. This datalayer is a polyline coverage representing major roads and trails worldwide and was published as part of the USGS Global GIS : global cover... American Geological Institute.

5. U.S. National Transportation Atlas Highways

Datasets Harvard University Restricted content
1997. Bureau of Transportation Statistics, Harvard Geospatial Library, and Environmental Systems Research Institute, Inc. (ESRI). U.S. National Transportation Atlas Highways represents rural interstates and arteries; and urban freeways, expressways, interstates, arteries and c... Environmental Systems Research Institute, Inc. (ESRI).