Looking East from the mouth of Boulder Canyon, with narrow gauge railroad tracks crossing a bridge in the foreground; left center are Weist Mill with Colorado State Mills behind it, ca. 1880. View looking east from the mouth of Boulder Canyon with a railroad bridge in the foreground and Yount Mill in the middle distance left, with Weist Mill in front of it and Anderson Ditch flowing on one side of the tracks, Boulder Creek on the other.  Photo Courtesy of Carnegie Branch Library for Local History, Boulder Historical Society Collection.

2008 photo by John McKenzie.1800s photo by Louis Meile (neg. #2387/35mm) Local call number at Carnegie Branch Library for Local History: BHS 218-2-2 PHOTO #1