Nearly 500 buildings in the state capital get their heat from a clean, renewable source located deep in the ground.
A new thermal vent spewing steam in the air at Yellowstone National Park is gaining attention, mainly because it's visible ...
Those orange-and-white funnels that are set up in various spots smack in the middle of Manhattan streets. Ever wonder what, ...
If you are planning on driving in Yellowstone National Park when most of its roads open in April, you could drive by one of ...