Buena Vista, Colorado.  "Mining Exchange and Assay Office, J C H Grabill" in the foreground.  JCH Grabill was a well-known photographer at that time, <a rel="nofollow" class="external free" href="https://www.loc.gov/pictures/search/?st=grid&amp;co=grabill">https://www.loc.gov/pictures/search/?st=grid&amp;co=grabill</a>
Unknown author<span style="display: none;">Unknown author</span>
circa 1885 <div style="display: none;">date QS:P,+1885-00-00T00:00:00Z/9,P1480,Q5727902</div>
<a rel="nofollow" class="external free" href="https://www.facebook.com/westernmininghistory/photos/a.243577869046462.52859.107590605978523/243577875713128/?type=3&amp;theater">https://www.facebook.com/westernmininghistory/photos/a.243577869046462.52859.107590605978523/243577875713128/?type=3&amp;theater</a>