Much of Yellowstone National Park sits atop a huge subterranean volcanic chamber and it contains more accessible thermal features than all other places in the world put together. It also is home to many of the biggest and most regular geysers to be seen anywhere.
Categories & Keywords
Category:Travel and Places
Subcategory Detail:United States of America
Keywords:Grand Geyser, Grand Prismatic Spring, Old Faithful, Wyoming, Yellowstone, geyser, thermal