For reasons that are not clear, the huge volcano under Yellowstone National Park has been rising at an unprecedented rate during the past several years. But that doesn't necessarily mean that a massive, doomsday eruption is about to happen, finds a study that manages to put everyone at ease, more or less.
After a deadly mountain goat attack in Washington, authorities say the goat was known as aggressive.
Yellowstone Lake, previously thought to be devoid of life, has been discovered to contain thousands of species, mostly clustered around the geothermal vents at the bottom.
Yellowstone National Park may be the hideout for two convicted killers who escaped from an Arizona prison and their suspected accomplice.
Yellowstone-area deadly bear attack prompted state game officials to hunt and capture sow and her three cubs. The attacks that killed one man and injured two others did not occur in Yellowstone National Park.
'Nature without wolves is not nature,' says the field biologist and project leader
Acadia National Park will receive Obama and his family today. But will this vacation, like seemingly every other outing, get cancelled or interrupted?
A minister’s daughter seeks peace and meaning in a hardscrabble corner of Wyoming.
Used by a Native American hunter some 10,000 years ago, the atlatl dart was discovered in a melting patch of ice high in the Rocky Mountains.
A stream runs through Yellowstone National Park. Yellowstone is America's first national park, established in 1872, and is located in Wyoming, Montana, and Idaho. President Barack Obama will visit Yellowstone National Park this weekend.