Since retiring as an administrative manager in the Denver Parks & Recreation Department, Mike Butler has been traveling and researching local histories in Colorado and New Mexico. He has written five books for Arcadia Publishing’s Images of America series, including Around the Spanish Peaks; Great Sand Dunes National Park; Southern Colorado: O.T. Davis Collection; Littleton; and High Road to Taos. He has also written four books for Fonthill Media, including Tracking The Chili Line Railroad To Santa Fe; Tracking The Narrow Gauge From Chama to Durango; Tracking Rocky Mountain Railroad Club Excursions 1987–1990; and Getting Around in Glacier National Park.