4000 miles, 12 days, one car, no spare tire.
"The Firehole River is a good example of a "thermally polluted" river, although one that occurs entirely by natural processes. The inflow of water from the geysers basins raises the temperature of the Firehole River by 18-47° F (10 to 26° C). It's been estimated that in runoff from the Upper Geyser Basin alone, the Firehole gets some 68 tons (62 metric tons) of minerals every day.
I guess you guys got the 18 degree end of things! LOL
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