It still isn’t clear how the man, Il Hun Ro, ended up in the spring, but that investigators don’t suspect foul play, park officials said in a statement.
Park staff found Ro’s partial foot inside of a shoe in Abyss Pool in the park’s West Thumb Geyser Basin in August.
Investigators concluded that whatever happened to Ro occurred on the morning of July 31, but that nobody saw it. They identified Ro through a DNA analysis and notified his family, officials said.
Abyss Pool is 53 feet (16 meters) deep and about 140 degrees Fahrenheit (60 degrees Celsius). In such springs, hot water cools as it reaches the surface and then sinks as it is replaced by hotter water from below. The circulation prevents the water from reaching the temperature needed to set off an eruption like those that happen in the park’s geysers.
