My Yellowstone National Park handstand in front of Old Faithful.  This was my first visit to Yellowstone, and I was amazed at att the geysers in the park.  Old faithful erupts every 70 minutes, give or take 10 minutes or so.

This is the Great Fountain geyser geysing(?).  It only happens twice a day, and I was in the right spot at the right time.

This is the Mammoth Hot Springs in the northwest corner of the park.

Another view.  With material like this its difficult not to take lots of pictures.