Map Service Name: World_Navigation_Charts
Description: This map presents a digital version of the Operational Navigation Charts (ONC) at 1:1,000,000-scale, produced by the US National Geospatial-Intelligence Agency (NGA). The map includes over 200 charts across the world, excluding parts of North America, Europe, Asia, and Oceania where charts are not publicly available.
Attribution: Copyright:© 2010 East View Cartographic
Coordinate System:WGS 1984 Web Mercator
Units of Measure: Decimal degrees
Extent in Decimal Degrees:
Maximum Longitude: 179.999989
Maximum Latitude: 85.000000
Minimum Longitude: -179.999989
Minimum Latitude: -85.000000
Map DPI: 96
Tile Size of Map Cache: 256 pixels by 256 pixels
Map Service Data Format: Map Server Cache in JPG Format
Map Service Size: 8.73 GB
Map Service Size on Disk: 10.8 GB
Map Service Number of Files: 1,037,399
Cached Map Scales: