2000. Harvard Map Collection, United States. National Imagery and Mapping Agency, and Land Info (Firm). This polygon is an index to 1:500,000 scale maps of the world, titled 1:500,000 TPC (Tactical Pilotage Charts) : worldwide US military aviation/top... Harvard Map Collection.
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2021. U.S. Geological Survey. This is an index of all the National Elevation Dataset (NED) data tiles available at 1 arc-second resolution (approximately 30m pixels). All elevat...
2021. U.S. Geological Survey. This is an index of all the National Elevation Dataset (NED) data tiles available at 1/3 arc-second resolution (approximately 10m pixels). All elev...
1990. Harvard Map Collection and Land Info (Firm). This polygon is an index to maps of the world, titled [Landsat 4/5 TM 30m 7-4-2 GeoCover 1990 (1988-1992) near-worldwide and worldwide satellite im... Harvard Map Collection.
2000. Harvard Map Collection and Land Info (Firm). This polygon is an index to maps of the world, titled Landsat 7 ETM 15m 7-4-2 GeoCover 2000 (1999-2003). This map series was originally produced by... Harvard Map Collection.