Columbia 1930's-early to 1940's - Michael Francis has used the Sanborn map of 1929 of Columbia and with the help of his friends and family, George Mavrakis, Thelma Kasselas Mavrakis, Ivan McCourt, George Tratos, George Koukoutsakis, Kula Mavrakis Francis and Abe Garcia, labeled the homes with the names of the individuals who lived in each house. If you are interested in obtaining a copy of this map you can e-mail Michael Francis or Kathy Hamaker. There will be a charge for the copy since the map is approximately 30"x 36".
Maps on other servers
Sanborn Fire Insurance Maps - Maps are on the University of Utah library, J. Willard Marriott Library Digital Technologies webpage. Maps of Columbia, Helper and Price are available.
The The Utah Geological Survey offers a photographic tour of Utah's coal country. Webpage includes a map of the mines in operation and those that are inactive.