Report on the Portland Gold Mining Company, El Paso County : for the year 1897, page 272, vol. 2. 1897.
Related Entities
There are 5 Entities related to this resource.
Colorado. Bureau of Mines
http://n2t.net/ark:/99166/w6p59dhv (corporateBody)
Harnan, John.
http://n2t.net/ark:/99166/w6d589zk (person)
Burns, James F., 1898-1960
http://n2t.net/ark:/99166/w61k70gx (person)
Portland Gold Mining Company
http://n2t.net/ark:/99166/w6xq184x (corporateBody)
United States. Bureau of Mines
http://n2t.net/ark:/99166/w6t18v74 (corporateBody)
"In response to the growing number of fatalities in the mining industry, the United States Bureau of Mines (USBM) was established in 1910 to promote improved safety in mining through research and training. The USBM provided information to the public on the minerals industry. In September, 1995, the Congress voted to abolish the USBM" (http://www.msha.gov/TRAINING/LIBRARY/BureauofMines.htm; accessed 10/26/2009). From the description of United States Bureau of Mines Map Collection, Bef...