National Land Cover Database 2001 (NLCD2001)

References

Homer, Collin G., Huang, Chengquan, Yang, Limin, Wylie, Bruce K., Coan, Michael J., Development of a 2001 National Land Cover Database for the United States: Photogrammetric Engineering and Remote Sensing, v. 70, no. 7, p. 829–840, at https://doi.org/10.14358/PERS.70.7.829