This is on the top of my list of things to see and photograph: The Morning Glory hot spring. The colors are caused by brown, orange and yellow algae-like bacteria that thrive in the cooling water. (Getty Images)
by Claire O'Neill
Jul 17, 2011 — Celebrating one of America's great national parks -- and an upcoming vacation -- in photos.
Full disclosure: This is personal. I am going on a trip to Yellowstone (for the first time!), I may or may not literally cast a fishing line, and I am excited.
So I want to share these pictures to make you excited, too. Do you have Yellowstone photos? Add them to our Flickr pool! I may share a few when (if) I get back.
The photos in this gallery were all taken in June by Getty Images photographer Mark Ralston. But I also couldn't resist this one:
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