YELLOWSTONE NATIONAL PARK, Wyo. — A Utah woman was burned in Yellowstone National Park after stepping into a previously unknown hot pool.

Park officials say Jeanette Hogan had burns on one of her ankles and lower leg after the incident Thursday in the Artists' Paintpots area, about two and half miles south of Norris Junction.

Hogan was hiking on an established dirt trail with family members when she stepped in a rainwater puddle along the trail's edge. The crust gave way to a hot pool beneath.

Park geologists say the water was about 171 degrees Fahrenheit.

Hogan was taken to Eastern Idaho Regional Medical Center in Idaho Falls, where a spokeswoman says she was treated and released. Her age and hometown weren't immediately available.

The Artists' Paintpots area in the park has been temporarily closed.