Norman Kamrud, 78, leads his horse Blueberry and pack mule Jumper down the rocky path from the Patrol Mountain Fire Lookout after doing radio maintenance work at the lookout in Augusta, Montana, U.S., July 16, 2021. By around the 1950s, around 5,000 fire lookout towers had been built across the United States. Many have since closed, as infrared cameras and drones replace the human eye. The Forest Fire Lookout Association estimates that only around 400 lookout towers are still operational today. REUTERS/Brittany Hosea-Small SEARCH "WILDFIRES LOOKOUT" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES. TPX IMAGES OF THE DAY