Annie Carlson

Annie Carlson

A place where fish can swim over the Continental Divide

By: - March 23, 2022

Near the southern boundary of Yellowstone National Park is a curious location—a pass on the Continental Divide that is so gentle, fish can swim across, moving from the Pacific to the Atlantic watershed! The Continental Divide of North America is a crest that stretches from Alaska south through the Canadian Rockies, the contiguous 48, and down […]

Yellowstone National Park — home to the world’s largest landslide

By: - November 24, 2021

Yellowstone is well-known as one of the largest volcanic systems in the world. Few people know, however, that the largest-known subaerial landslide on Earth is located just next door. Among the geologic hazards in the Yellowstone region, you may be familiar with the possibility of earthquakes, hydrothermal explosions, and volcanic eruptions. But what about landslides? We know […]

The oldest historic building in Yellowstone National Park (was never built)

By: - April 19, 2021

Yellowstone is dotted with historic places.  But did you know that the oldest building that is still standing, built 140 years ago, was constructed because of a thermal spring? Every historic building in Yellowstone has a story to tell. You may be familiar with the impressive Old Faithful Inn or Fort Yellowstone’s tidy rows of red-roofed buildings. But […]