2007. Collins Bartholomew Ltd. This polygon shapefile is a representation of the coverage area for 3G mobile communications networks around the world in 2007. The data is created... Collins Bartholomew Ltd.
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2008. Collins Bartholomew Ltd. This polygon shapefile is a representation of the coverage area for 3G mobile communications networks around the world in 2008. The data is created... Collins Bartholomew Ltd.
2009. Collins Bartholomew Ltd. This polygon shapefile is a representation of the coverage area for 3G mobile communications networks around the world in 2009. The data is created... Collins Bartholomew Ltd.
2011. Collins Bartholomew Ltd. This polygon shapefile is representation of the area covered by 3G mobile communications networks around the world in 2011. The data is created fro... Collins Bartholomew Ltd.
2012. Collins Bartholomew Ltd. This polygon shapefile is a representation of the coverage area for 3G mobile communications networks around the world in 2012. The data is created... Collins Bartholomew Ltd.
2013. Collins Bartholomew Ltd. This polygon shapefile is a representation of the coverage area for 3G mobile communications networks around the world in 2013. The data is created... Collins Bartholomew Ltd.
2009. Collins Bartholomew Ltd. This point shapefile contains locations of 4G mobile cellular towers around the world for 2013. The data is created from submissions made directly ... Collins Bartholomew Ltd.
2013. Collins Bartholomew Ltd. This polygon shapefile is a representation of the coverage area for 4G mobile communications networks around the world in 2013. The data is created... Collins Bartholomew Ltd.
1997. United States. National Imagery and Mapping Agency. This datalayer is a point coverage representing airports and airfields worldwide and was published as part of the USGS Global GIS : global coverage... American Geological Institute.
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.