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

View looking northwest at a new thermal pool in the Porcelain Basin area of Norris Geyser Basin, Yellowstone National Park, that probably formed in a series of mildly explosive events between late ...

Nearly a dozen rivers in western Montana and a handful of rivers inside the borders of Yellowstone National Park are under restrictions as biologists seek to reduce angling-related sources of ...

Dustin Mulvaney traces the current deregulatory bonanza that the Trump administration has unleashed on public lands and ...