"The discovery emphasizes the dynamic nature of Yellowstone's thermal activity," Yellowstone Volcano Observatory's Mike Poland said.

Historian, photographer, and former Yellowstone ranger Bob Richard will present a talk about Yellowstone National Parks’s first century, 1872–1972, on Thursday, July 17, at the Buffalo Bill Center of

Glacier has welcomed 346,437 visitors so far this year—12% more than the same period last year and a whopping 31% more than in 2017, the park’s record year.