Simple construction materials and techniques include the broad-axe hewn log walls that have squared-up exterior and interior faces, V-notched and half-dove tail notched corners, sawn wood chinking, lime composition daubing, and gable roofs, all of which exemplify the Pioneer Log method of construction employed by miners.  It exhibits the readily available materials from nearby forests miners with limited means found quickly and inexpensively.  The Mill City House reflects the evolution of the early Pioneer Log cabin constructed quickly for a mining settlement to a refined road house with clapboard covering the logs at one time.  It began as two cabins constructed during the early mining period in Clear Creek County, possibly for miners and their families and were joined at an unknown date, likely in the mid-1860s.