@misc{indiciae5f954b07b8fd,
  title = {Map showing distribution, composition, and age of Late Cenozoic volcanoes and volcanic rocks of the Cascade Range and vicinity, northwestern United States},
  author = {R. G. Luedke and R. L. Smith and S. L. Russell-Robinson},
  year = {1983},
  doi = {10.3133/i1507},
  url = {https://pubs.usgs.gov/publication/i1507},
  note = {Source identifier: i1507}
}