Rangers received a phone call on the morning of May 17th reporting a fire at Blue Heron overlook. The overlook consists of an approximately 2000 square feet of deck with a metal-roofed structure over half of the deck. The visitor reported that it appeared that lightning had struck the overlook and that it was burning and nearly fully consumed. Rangers and fire crew personnel responded and found the overlook approximately 70 percent consumed and still actively burning. The fire was immediately extinguished using the park's engine, with unburned sections of the overlook saved by cutting away burning portions. A small section of woods also burned adjacent to the overlook. An investigation revealed no sign of vandalism and that there was substantial lightning the evening before the fire was reported. The structure is still being evaluated to estimate how much can be saved. Ranger Jimmy Barna was IC and investigating ranger on this incident.