thermal

Park officials say the ground in hydrothermal areas is fragile and thin, and there is and acidic scalding water just below the surface.

Hambrick ordered Skinner to pay $1,250 in community service to the Park's nonprofit partner Yellowstone Forever.

"Currently, the park believes there was no foul play."

The ground in hydrothermal areas is fragile and thin, and there is scalding water just below the surface.