Colorado Preservation, Inc. is a 501(c)3 nonprofit charitable organization, Federal Tax number 74-2403583
Numerous communities abutting, sometimes straddling I-70 in the Clear Creek Valley from Idaho Springs to Graymont, attest to the 19th and early 20th century history of mineral, milling, timber, and railroad industries in Colorado. Idaho Springs has been designated a...
Historic Bridges of Colorado highlights 23 preservation-priority bridges identified through Colorado Preservation, Inc.’s Endangered Places Program and the Colorado Department of Transportation. These bridges represent the state’s transportation history, engineering innovation, and long-term preservation planning for historic bridge resources.