One person has been found dead, another is missing and nearly 350 homes have been destroyed by a raging U.S. wildfire that has forced tens of thousands to flee this week. President Barack Obama on Friday will tour the scene of the most destructive fire in Colorado history.

Ever-changing winds have caused the fire to push into the city limits of Colorado Springs, frustrating firefighters and roaring along the edge of the U.S. Air Force Academy. It was still too dangerous for officials to get close to determine the cause of the fire or get a complete count of burnt homes.