Tingvik, Linda Irene (December 30, 2006). "Rail dates". Cripple Creek Railroads. Archived from the original on February 11, 2012. Retrieved March 4, 2007.
Tingvik, Linda Irene (December 30, 2006). "Rail dates". Cripple Creek Railroads. Archived from the original on February 11, 2012. Retrieved March 4, 2007.