USA Topographic Maps

Map Service Name: USA_Topo_Maps

Description: This map presents land-cover imagery for the world and detailed topographic maps for the United States. The map includes the National Park Service (NPS) Natural Earth physical map at 1.24km per pixel for the world at small scales, i-cubed eTOPO 1:250,000-scale maps for the contiguous United States at medium scales, and National Geographic TOPO! 1:100,000 and 1:24,000-scale maps (1:250,000 and 1:63,000 in Alaska) for the United States at large scales. The TOPO! maps are seamless, scanned images of United States Geological Survey (USGS) paper topographic maps.

Attribution: Copyright:© 2012 National Geographic Society, i-cubed

Coordinate System: Web Mercator Auxiliary Sphere (WKID 102100)

Tiling Scheme: Web Mercator Auxiliary Sphere

Map Service Data Format: Map Server Cache in JPEG Format

Data Collection Details:

	World Premier Collection	North America Collection	Europe Collection	World Small-Scale Collection
Largest scale	~1:18k	~1:18k	~1:72k	~1:72k
Map service size on disk	296 GB	296 GB	Not Available	Not Available
Number of files	3,387	3,387	Not Available	Not Available