Montreal, 2 November 2017—A new map produced by the trinational North American Land Change Monitoring System (NALCMS) and supported by the Commission for Environmental Cooperation (CEC) depicts year 2010 land cover across North America at 30-meter spatial resolution, representing a significant increase in resolution from the previous NALCMS 250-meter continental products.

Created from a composite of images assembled from satellite observations (Landsat-7), this land cover product was developed through a collaborative effort that applied a harmonized, 19-class land cover classification system for Canada, Mexico and the United States to provide uniform information at a consistent scale for the continent.

Rest of the article is here –

http://mailchi.mp/cec/land-cover-map-of-north-america-at-30-meter-spatial-resolution-released-by-the-cec?e=bd5f95dd46

And data here :

http://www.cec.org/tools-and-resources/map-files/land-cover-2010-landsat-30m