At center is the assay office. Behind it to the left is the tramway structure at the Union Mine. At far left is a modern outhouse. At right is one of the cribs from Lola's brothel.
Interior of the assay office, which has been restored by a volunteer and filled with artifacts found around Cerro Gordo
Small furnace used for smelting galena (lead-silver ore) at Cerro Gordo. Probably from Cerro Gordo's Mexican period, although the end plate indicates it was manufactured in Los Angeles or San Francisco. Now housed in the restored assay office. In front of the furnace (at bottom of photo) are some chunks of brick that formed the interior walls of a furnace — glazed dark blue/black on one side, sandy yellow on the other
Directional signs and other artifacts found around Cerro Gordo, now housed in the assay office
Crucibles found around Cerro Gordo, now housed in the restored assay office
Sign from the aerial wire rope tramway that ran above the Yellow Grade Road during Cerro Gordo's zinc period. The Leschen & Sons Rope Co. tram replaced the mining camp's original tramway around World War I. Sign now hangs in the assay office
Interior of the Assay Office
Interior of Assay Office, pneumatic drill at right
Pneumatic Drill on display in Assay Office