pl23_amer0174.jpg
![The Obsidian Cliffs amer0174.jpg The Obsidian Cliffs](https://s3.amazonaws.com/s3-east-testmedia-noaa.woc.noaa.gov/dam/Photos/legacy/pl23_amer0174.jpg)
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https://www.noaa.gov/media/digital-library-photo/pl23amer0174jpgDescription
The Obsidian Cliffs. Stone from these cliffs is found as far east as theHopewell Mounds in Chillicothe, Ohio, dating to 400 A.D. indicating extensivepre-historic native American trade routes across North America.
Photographer
Dr. David Goodrich
Display Date
2011 June 28
Location
Wyoming, Yellowstone National Park
Collection
Small World
United States
NOAA Affiliation
NOAA (ret.)