Index map showing locations of 1967–1968 research drill holes in Yellowstone National Park
By Yellowstone Volcano Observatory
1975 (approx.)
![Index map showing locations of 1967–1968 research drill holes in Yellowstone National Park](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/full_width/public/media/images/Whiteetal1975_mAPCORES.jpg?itok=oDpsG59k)
Detailed Description
Map: Index map showing locations of 1967–1968 research drill holes in Yellowstone National Park. Taken from USGS Bulletin 1967.
Sources/Usage
Public Domain.