@misc{indiciae5e057bbd628f,
  title = {Slope map of Anchorage and vicinity, Alaska},
  author = {H. R. Schmoll and Ernest Dobrovolny},
  year = {1972},
  doi = {10.3133/i787b},
  url = {https://pubs.usgs.gov/publication/i787B},
  note = {Source identifier: i787B}
}