Yellowstone National Park has more than half of the world's geysers.

Together with a guide-book of the Yellowstone national park.

Yellowstone National Park is the most famous of the region's protected areas.

Yellowstone National Park is "the largest active volcano in the world."

Reintroducing the gray wolf to central Idaho and yellowstone national park.

Our latest was to see Yellowstone National Park and beyond.

Yellowstone National Park is a hot spot located within the center of a continent.

Victor is about 50 miles south of Yellowstone National Park.

They now fear efforts to open a large mine just two miles from Yellowstone National Park.

North of here, heavy snow forced officials to close Yellowstone National Park for two days.

Imagine if the caldera erupted beneath Yellowstone national park.

No public transportation exists to or within Yellowstone National Park.

But where, this side of Yellowstone National Park, can you actually meet a living, breathing one?

A portion of Yellowstone National Park reaches into the county.

A total of 31 wolves were released in Yellowstone National Park.

Also, he helped in the cause to put wolves back into Yellowstone National Park.

Another positive aspect of reintroducing large predators, is the increase in tourism (see Yellowstone national park).

Its status as part of Yellowstone National Park, however, has not been changed through this transfer.

Yellowstone National Park is famous for its geysers and hot springs.

In all, 6 million acres burned last year, including half of Yellowstone National Park.

Nearly three million people use the lawn each year, the same number that visit Yellowstone National Park.

As it happens, 1998 will mark the 30th year of natural regulation in Yellowstone National Park.

Beginning in 1988, he has run the summer astronomy program at Yellowstone National Park (most years).

He began his career in Yellowstone National Park in 1987.

For many years, Yellowstone National Park will offer a stark contrast to what it has been.