Assay Office (Boise, Idaho)

Assay Office in Boise, Idaho, USA

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Assay Office
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Assay Office is located in Idaho
Assay Office
Assay Office
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Assay Office is located in the United States
Assay Office
Assay Office
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Location210 Main Street, Boise, Idaho
Coordinates43°36′40.98″N 116°11′45.03″W / 43.6113833°N 116.1958417°W / 43.6113833; -116.1958417Coordinates: 43°36′40.98″N 116°11′45.03″W / 43.6113833°N 116.1958417°W / 43.6113833; -116.1958417
Area2 acres (0.81 ha)
Built1871
ArchitectAlfred B. Mullett; John R. McBride
NRHP reference No.66000305
Significant dates
Added to NRHPOctober 15, 1966[1]
Designated NHLMay 30, 1961[2]

The Assay Office is a historic building at 210 Main Street in Boise, Idaho. It is significant for its role in the history of mining in Idaho, and was the first major federal government building in the Idaho Territory. During the first half of the 1860s, Idaho's gold production was the third highest in the nation. Due to the difficulty of transporting bulky, heavy ores the long distance to the nearest U.S. Mint in San Francisco, there was great demand for an assaying office in Idaho.[3] Gold and other precious metals are not mined in a pure form. In order to place a value on an ore, the precious metal must be separated from the impurities. This is what an assay office does.[4][5]

  1. ^ "Assay Office". NPGallery. National Park Service. Retrieved October 27, 2018.
  2. ^ "Assay Office". National Historic Landmarks Program. National Park Service. Archived from the original on January 10, 2008. Retrieved February 2, 2008.
  3. ^ Cite error: The named reference nrhpinv2 was invoked but never defined (see the help page).
  4. ^ Anna Webb (February 7, 2013). "150 Boise Icons: Old Assay Office". The Idaho Statesman. Retrieved October 27, 2018.
  5. ^ Arthur Hart (November 13, 2017). "Boise's Assay Office played an important role for the whole nation". The Idaho Statesman. Retrieved October 27, 2018.

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