@misc{indiciae6a92e72f1c87,
  title = {Colorado Plateaus Ecoregion: Chapter 21 in Status and trends of land change in the Western United States--1973 to 2000},
  author = {Michael P. Stier},
  year = {2012},
  doi = {10.3133/pp1794a21},
  url = {https://pubs.usgs.gov/publication/pp1794A21},
  note = {Source identifier: pp1794A21}
}