December 17, 2013 in City
File photo

The Old Faithful geyser erupts in Yellowstone National Park. The chamber of magma beneath the the park is 18 miles wide and runs from 3 to 9 miles below the earth


Please keep it civil. Don't post comments that are obscene, defamatory, threatening, off-topic, an infringement of copyright or an invasion of privacy. Read our forum standards and community guidelines.

You must be logged in to post comments. Please log in here or click the comment box below for options.

comments powered by Disqus