@misc{indiciae28a4aba4d10f,
  title = {A guide to the Mule Creek volcanic vent, the rhyolite of Potholes Country, and obsidian ledges, Gila National Forest, southwestern New Mexico},
  author = {J.C. Ratte},
  year = {2004},
  url = {https://pubs.usgs.gov/publication/70026484},
  note = {Source identifier: 70026484}
}