Yellowstone National Park has more potential hazards than the thermal pools. Bear and bison have also injured or killed visitors.

A woman suffered severe 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.

A New Hampshire woman suffered burns on her leg after hiking off trail in Yellowstone National Park and falling through a thin crust over scalding water in a thermal area near the Old Faithful geyser.

The 60-year-old was walking with her husband and dog near a geyser when she broke through the ground into scalding waters on Monday afternoon, according to the National Park Service.

A 60-year-old woman received third-degree burns walking in a thermal area in Yellowstone National Park in Wyoming this week, according to park officials.

The woman was reportedly walking with her husband and their leashed dog in a thermal area — but they were not walking on a trail.