The development of highways in Colorado changed the state’s landscape forever. The Colorado highways have an interesting history. Our library has many historical materials relating to the building of the highways from what is now called the Colorado Department of Transportation, but originally was called the Colorado Department of Highways. Additionally, for an excellent background on the Colorado highway system, see Highways to the Sky: A Context and History of Colorado’s Highway System. Other interesting publications on this topic that we have in our collection include: 100 Years of State Transportation History, by CDOT; and 50th Anniversary of the National System of Interstate and Defense Highways, also from CDOT. Search our web catalog for the many titles we have relating to Colorado’s highway and transportation systems, past, present and future.