The vault toilet completely melted at Man Made Hole near Petersburg. Photo courtesy of the U.S. Forest Service

The vault toilet completely melted at Man Made Hole near Petersburg. Photo courtesy of the U.S. Forest Service

A public toilet at a lake outside of Petersburg was destroyed in what is believed to be arson. The fire damage was first noticed Tuesday morning when a forestry worker visited the recreation site known as Man Made Hole.

The U.S. Forest Service maintains the vault toilet and the picnic area at the lake.

Carin Christensen works with Developed Recreation at the U.S. Forest Service in Petersburg and talked with Angela Denning about what happened:

A dark line on the ground suggests the fire started outside. Photo courtesy of the U.S. Forest Service

A dark line on the ground suggests the fire started outside. Photo courtesy of the U.S. Forest Service

The number to call with any information about the incident is 772-3871.