File:1904 Bunker Hill Mine Stope Map.png

Original file (1,442 × 914 pixels, file size: 1.1 MB, MIME type: image/png)

Summary

Description
English: 1904 Bunker Hill Mine Stope Map and Cross Section
Date
Source The geology and ore deposits of the Coeur d'Alene district, Idaho, USGS Professional Paper 62, https://pubs.er.usgs.gov/publication/pp62
Author U.S. Dept. of the Interior, USGS, F. L. Ransome and Frank Cathcart Calkins

Licensing

Public domain
This image is in the public domain in the United States because it only contains materials that originally came from the United States Geological Survey, an agency of the United States Department of the Interior. For more information, see the official USGS copyright policy.

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copyright status

public domain

applies to jurisdiction: United States
determination method or standard: work of the federal government of the United States

media type

image/png

checksum

b0ec15085c76c58ba031b03beb8322ec385a0413

determination method or standard: SHA-1

data size

1,148,919 byte

height

914 pixel

width

1,442 pixel

inception

1 January 1908Gregorian

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Date/TimeThumbnailDimensionsUserComment
current17:10, 21 November 2018Thumbnail for version as of 17:10, 21 November 20181,442 × 914 (1.1 MB)Pi3.124User created page with UploadWizard

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allikas: https://en.wikipedia.org/wiki/File:1904_Bunker_Hill_Mine_Stope_Map.png