Mississippi River
| Artist or Photographer | NPS Photo |
| Location | Fire Point in Effigy Mounds National Monument, Iowa, USA |
| Source of Image | https://commons.wikimedia.org/w/index.php?curid=3720155 |
| Notes | https://www.nps.gov/media/photo/gallery-item.htm?pg=3030162&id=60DA8477-155D-4519-3EA2AACB7158D76A&gid=60D8FDB8-155D-4519-3E4DA807907B48E2, Public Domain |