NYU Spatial Data Repository

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1. Global GIS : Aqueducts, canals, flumes, penstocks

1997. This datalayer is a polyline coverage representing major roads worldwide and was published as part of the USGS Global GIS : global coverage databas... American Geological Institute.

2. Global GIS : Drainage Basins

2003. This datalayer is a polygon coverage representing hydrologic drainage basins located worldwide. The data displayed here is derived from the HYDRO 1... American Geological Institute.

3. Global GIS : Hydrography danger points

1997. This datalayer is a point coverage representing worldwide navigational hazards or dangers near ocean and navigable lake coastlines and was publishe... American Geological Institute.

4. Global GIS : Miscellaneous hydrography point features

1997. This datalayer is a point coverage representing worldwide miscellaneous hydrography point features and was published as part of the USGS Global GIS... American Geological Institute.