Douglas County, established in 1861, is one of Colorado’s original counties. Mining, agriculture, sawmills, and railroads contributed to the growth of this territory, which includes two state parks and dozens of landmarked properties. Over 46 percent of the county’s land is public or protected. While retail is now the largest industry in the area, this book will highlight some of the working ranches, original structures, and open spaces that remain thanks to cultural and historical stewardship.