The Ogden Police Department is investigating an arson at Pineway Ponds Park over the weekend.
A lodge in the park was destroyed by fire November 4th.
Firefighters say the facility was fully engulfed when they arrived. The building is considered a total loss.
The lodge is the largest of four at the park. It's fully enclosed and used year-round with cooking and bathroom facilities inside.
Firefighters do not know when the lodge was last used or how the fire started.
Police ask anyone with information to call 911.