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File:East Elevation, South and North Ends - Kennecott Copper Corporation, Leaching Plant, On Copper River and Northwestern Railroad, Kennicott, Valdez-Cordova Census Area, AK HAER AK-1-E (sheet 15 of 26).png

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East Elevation, South and North Ends - Kennecott Copper Corporation, Leaching Plant, On Copper River and Northwestern Railroad, Kennicott, Valdez-Cordova Census Area, AK
Photographer
Houston, Chris, creator
Title
East Elevation, South and North Ends - Kennecott Copper Corporation, Leaching Plant, On Copper River and Northwestern Railroad, Kennicott, Valdez-Cordova Census Area, AK
Depicted place Alaska; Valdez-Cordova Census Area; Kennicott
Date Documentation compiled after 1968
Current location
Library of Congress Prints and Photographs Division Washington, D.C. 20540 USA http://hdl.loc.gov/loc.pnp/pp.print
Accession number
HAER AK-1-E (sheet 15 of 26)
Credit line
This file comes from the Historic American Buildings Survey (HABS), Historic American Engineering Record (HAER) or Historic American Landscapes Survey (HALS). These are programs of the National Park Service established for the purpose of documenting historic places. Records consist of measured drawings, archival photographs, and written reports.

This tag does not indicate the copyright status of the attached work. A normal copyright tag is still required. See Commons:Licensing.

Notes
  • Significance: The original leaching plant (now the south end of the building) was constructed in 1915 and went into production the next year. The first four leaching tanks could process 300 tons of ore per day. Within a year the number of leaching tanks was doubled with additions to the north end of the plant. Leaching could not recover all of the copper. In 1923, a small flotation plant was installed at the north end of the leaching plant to process the small ore particles known as slimes and sands.
  • Unprocessed Field note material exists for this structure: N1050
  • Survey number: HAER AK-1-E
  • Building/structure dates: 1915 Initial Construction
  • Building/structure dates: 1923 Subsequent Work
  • Building/structure dates: 1935 Subsequent Work
  • Building/structure dates: 1938 Subsequent Work
References

This is an image of a place or building that is listed on the National Register of Historic Places in the United States of America. Its reference number is 78003420.

Related names:

Christianson, Justine, transmitter
Alaska Support Office
Source https://www.loc.gov/pictures/item/ak0477.sheet.00015a
Permission
(Reusing this file)
Public domain This image or media file contains material based on a work of a National Park Service employee, created as part of that person's official duties. As a work of the U.S. federal government, such work is in the public domain in the United States. See the NPS website and NPS copyright policy for more information.
Other versions
Object location61° 29′ 11″ N, 142° 53′ 11″ W Kartographer map based on OpenStreetMap.View this and other nearby images on: OpenStreetMapinfo

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