An indigenous map drawn on a bison pelt and indicating a volcano on the Yellowstone River was described by the governor of Louisiana Territory in an 1805 letter to Thomas Jefferson. The first ...

In the time it would take to map ... system allow discrete, episodic eruptions of hot water at the surface. There are only about 1,000 active geysers on Earth; about half of them are in Yellowstone.

You can see those ash beds outlined in the map below. The most recent eruption ... Eruptions of the Yellowstone volcanic system have included the two largest volcanic eruptions in North America ...

The Madison River from the Wyoming/Montana state line downstream to the park boundary near the West Entrance in West Yellowstone ... in the shallow hydrothermal system beneath Black Diamond ...

The devastating flooding that occurred along the Yellowstone River this week constitutes a ... referred to as the Alternating License Plate System (ALPS), was suggested as a solution by gateway ...

Preliminary testing of water and air quality along a stretch of the Yellowstone River where train cars with ... continue to challenge the vast railway system that transports nearly 22 million ...