Mine with rows of concentrating tables (Gilpin County Cast Iron Bumping Table), wheelbarrow, and machinery, Perigo, Gilpin County, Colorado.
Mines and mineral resources--Colorado--Perigo--1890-1910.; Perigo (Colo.)--1890-1910.; Industry--Colorado--Perigo--1890-1910.; Interiors--Colorado--Perigo--1890-1910.; Mining--Colorado--Perigo--1890-1910.
mortars and amalgamated with the gold in the ore. The stamps were periodically stopped and the amalgam was retrieved and then sold to banks or the mint.; The interior of a stamp mill, possibly the Iron City Stamp Mill in Blackhawk, Colorado, shows...
Ore-dressing plants--Colorado--Blackhawk--1870-1910.; Ore-dressing--Colorado--Blackhawk--1870-1910.; Blackhawk (Colo.)--1870-1910.; Gilpin County (Colo.)--1870-1910.; Gold mining--Colorado--Blackhawk--1870-1910.
Yearbook for Denver Manual Training High School 1910.
Manual High School (Denver, Colo.)--Students--Yearbooks.; Denver Public Schools--Students--Yearbooks.; School yearbooks--Colorado--Denver.; High schools--Colorado--Denver--Periodicals.
South High School (Denver, Colo.)--Students--Yearbooks.; Denver Public Schools--Students--Yearbooks.; High schools--Colorado--Denver--Periodicals.; School yearbooks--Colorado--Denver.
South High School (Denver, Colo.)--Students--Yearbooks.; Denver Public Schools--Students--Yearbooks.; High schools--Colorado--Denver--Periodicals.; School yearbooks--Colorado--Denver.
West High School (Denver, Colo.)--Students--Periodicals.; Denver Public Schools--Students--Yearbooks.; School yearbooks--Colorado--Denver.; High schools--Colorado--Denver--Periodicals.
An alphabetical listing of people who were killed in mining accidents in Colorado from 1884, when state legislation first required mining companies to report their accidents, through 1962.
Mine accidents--Colorado. ; Registers of births, etc.--Colorado. ; Colorado--Vital records.