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1. ESRI Data & Maps 2004 : U.S. National Atlas Water Feature Areas

Datasets Harvard University Restricted content
Geological Survey (U.S.) and Environmental Systems Research Institute (Redlands, Calif.). U.S. National Atlas Water Feature Areas represents the water feature areas (for example, bays, glaciers, lakes, and swamps) of the United States. ESRI.

2. ESRI Data & Maps 2005 : U.S. National Atlas Water Feature Areas

Datasets Harvard University Restricted content
1995. Geological Survey (U.S.) and Environmental Systems Research Institute (Redlands, Calif.). U.S. National Atlas Water Feature Areas represents the water feature areas (for example, bays, glaciers, lakes, and swamps) of the United States. ESRI.

3. ESRI Data & Maps 2005 : U.S. National Atlas Water Feature Lines

Datasets Harvard University Restricted content
1995. Geological Survey (U.S.) and Environmental Systems Research Institute (Redlands, Calif.). U.S. National Atlas Water Feature Lines represents the linear water features (for example, aqueducts, canals, intracoastal waterways, and streams) ... ESRI.

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

Datasets Harvard University Public content
1997. United States. National Imagery and Mapping Agency. 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.

5. VMap1 Aqueducts, Lines

Datasets Harvard University Public content
1995. National Geospatial-Intelligence Agency. This datalayer is a polyline coverage representing aqueducts and canals located throughout current Vmap geographic coverage areas. Objects in this ...

6. VMap1 Aqueducts, Points

Datasets Harvard University Public content
1995. National Geospatial-Intelligence Agency. This datalayer is a point coverage representing aqueduct features such as canals and shafts. Objects in this layer have FACC (Feature and Attribute...