Cliff mine
id:
cliff-mine-318-18359162
title:
Cliff mine
text:
The Cliff mine was the first successful copper mine in the Copper Country of the state of Michigan in the United States. The mine is at the now-abandoned town of Clifton in Keweenaw County. Mining began in 1845, and the Cliff was the most productive copper mine in the United States from 1845 through 1854. Large-scale mining stopped in 1878. The Cliff mined a fissure vein of native copper in Precambrian conglomerate and basalt beds. The vein was nearly vertical, dipping steeply to the east, and r
brand slug:
wiki
category slug:
encyclopedia
description:
original url:
https://en.wikipedia.org/wiki/Cliff_mine
date created:
date modified:
2023-11-13T02:11:15Z
main entity:
{"identifier":"Q5132813","url":"https://www.wikidata.org/entity/Q5132813"}
image:
{"content_url":"https://upload.wikimedia.org/wikipedia/commons/e/e3/Cliff_mine.jpg","width":3764,"height":2823}
fields total:
13
integrity:
14