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31. Global GIS : Bailey equal-area grid

Datasets Harvard University Public content
2003. Environmental Systems Research Institute (Redlands, Calif.). This dataset is a polyline coverage representing the Bailey Equal-Area Grid. The Bailey Equal-Area Grid is an area-reference grid that uses meridia... American Geological Association.

33. Global GIS : Storage points

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

34. VMap1 Aeronautical Facilities, Points

Datasets Harvard University Public content
1995. National Geospatial-Intelligence Agency. This datalayer is a point coverage representing aeronautical facilities such as airports and airfields. Objects in this layer have an FACC (Feature...

35. VMap1 Agricultural Structures, Points

Datasets Harvard University Public content
2001. National Geospatial-Intelligence Agency. This datalayer is a point coverage representing agricultural facilities such as silos, storage bins for feeds or grains and grain elevators. Object...

36. VMap1 Airport Control Towers

Datasets Harvard University Public content
1995. National Geospatial-Intelligence Agency. This datalayer is a point coverage representing control towers and airport lighting features throughout current VMap1 geographic coverage areas. Fe...

37. 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 ...

38. 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...

39. VMap1 Bluffs and Cliffs, Lines

Datasets Harvard University Public content
1995. National Geospatial-Intelligence Agency. This datalayer is a polyline coverage representing physiographic features such as bluffs or cliffs located throughout current Vmap1 geographic cove...

40. VMap1 Boundary Barriers, Lines

Datasets Harvard University Public content
1995. National Geospatial-Intelligence Agency. This datalayer is a polyline coverage representing barriers such as as walls and fences, located throughout current Vmap geographic coverage areas....