Yellowstone Park accident victim dissolved in boiling acidic pool

[Shell B]

For anyone interested, this document has some great measurements of temperature, pH, etc. of the springs in Yellowstone. Unfortunately, some of the data isn't complete, such as it's filled in as "acid" instead of a numeric value in some places. If nothing else, it will give you an idea of just how many of these things are in this massive park.

https://pubs.usgs.gov/bul/1303/report.pdf