Grand Canyon National Park fire crews are actively working to suppress a wildfire on the North Rim of Grand Canyon National Park. The lightning ignited Imperial Fire is currenty estimated to be three acres in size and is located along the Cape Royal Road near Vista Encantada. The fire started July 18. Smoke is visible from both the North and South Rims of the park. At this time there are no road closures, individuals driving along Cape Royal Road should be aware of fire crews working. Motorist should turn on their headlights and slow down for emergency response vehicles. Grand Canyon National Park is seeing an increase in wildfire starts because of monsoonal lightning patterns.