For over a century, the U.S. Forest Service has posted fire lookouts at the tops of mountains and trees: men and women who gaze out at the horizon, watching and waiting for signs of smoke, and serving as the eyes for the fire crews who go out to battle the blazes. In this episode, we talk to Philip Connors, who keeps watch over one of the most fire-prone forests in the country: the Gila National Forest in New Mexico. Every summer, for nearly two decades, he sits in a tiny cabin at the top of a fire lookout tower, with his binoculars, maps and notebooks, standing guard. That experience formed the subject of his book, "Fire Season: Field Notes from a Wilderness Lookout." We also talk to science historian Jameson Karns about the origins of fire towers and their place in American culture; and to Vincent Ambrosia, a research scientist who works with NASA to improve wildfire monitoring.

Western Edition is hosted by William Deverell and produced by Avishay Artsy, Katie Dunham, Jessica Kim and Elizabeth Logan. Our music was written and recorded by I See Hawks in L.A. Western Edition is a production of the Huntington-USC Institute on California and the West.