National Land Cover Database 2011 (NLCD2011)

References

Homer, Collin G., Dewitz, Jon A., Yang, Limin, Jin, Suming, Danielson, Patrick, Xian, George, Coulston, J., Herold, N.D., Wickham, J.D., Megown, K., Completion of the 2011 National Land Cover Database for the conterminous United States—Representing a decade of land cover change information: Photogrammetric Engineering and Remote Sensing, v. 81, no. 5, p. 345–354, at http://www.ingentaconnect.com/content/asprs/pers/2015/00000081/00000005/art00002