@misc{indiciae9c6ec147fd1a, title = {National Land Cover Database 2001 (NLCD01) Tree Canopy Layer Tile 1, Northwest United States: CNPY01\_1}, author = {Andrew E. LaMotte and Michael Wieczorek}, year = {2010}, doi = {10.3133/70046118}, url = {https://pubs.usgs.gov/publication/70046118}, note = {Source identifier: 70046118} }