A New Hampshire woman suffered burns on her leg after hiking off trail in Yellowstone National Park and falling into scalding water in a thermal area near the Old Faithful geyser, park officials said.

Spanning swaths of Montana, Wyoming and Idaho, Yellowstone National Park is home to one of the most famous images to come out of the 63 national parks across the country. The bright blue, green and orange colors of the geothermal geyser Old Faithful are caused by thermophiles or microscopic organisms that thrive in hot temperatures in spring water rising from deep within the ground.