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  • All fields: sulphide
(84 results)



Display: 50

    • Eldora, Colo. 1899

    • deposit more than 100 feet thick and was soon determined to be an unsuitable site and the plan was relocated to where the present Barker Dam sits east of Nederland. Several log cabins stand at the base of the hill in the background as well as in...
    • Boulder County (Colo.)--1890-1900.; Nederland (Colo.)--1890-1900.; Log cabins--Colorado--Nederland--1890-1900.; Tree limbs--1890-1900.
    • [between 1935 and 1950?]
    • Sulfide Flats

    • A group of large pine trees stands in the midground near Sulphide Flats west of Nederland in Boulder County, Colorado. In 1907, the area was chosen as the site for a new dam to serve as a hydroelectric power source. W. Hollingsworth McCleod, a...
    • Boulder County (Colo.)--1930-1950.; Nederland (Colo.)--1930-1950.; Pines--Colorado--Nederland--1930-1950.
    • [between 1935 and 1950?]
    • Place names of Colorado : a genealogical & historical guide to Colorado sites

    • The primary objective of this index is to contain a comprehensive listing of place names or sites in Colorado that would direct the researcher to recent and readily available publications. Included in this publication for each site or place name,...
    • Names, Geographical--Colorado.; Colorado--History, Local.
    • 1999
    • Eldora - Snow covered trees Sulphide Flats

    • Tall trees and shrubs stand on a snow-covered ridge near Eldora in Boulder County, Colorado. The branches of several of the trees are covered in snow.
    • Boulder County (Colo.)--1930-1950.; Eldora (Colo.)--1930-1950.; Shrubs--Colorado--Eldora--1930-1950.; Snow--Colorado--Eldora--1930-1950.; Trees--Colorado--Eldora--1930-1950.
    • [between 1935 and 1950?]
    • School of Mines

    • Interior view of a classroom laboratory, Colorado School of Mines, Golden, Jefferson County, shows a large group of male students conducting experiments with glass beakers at lab tables with sinks. Glass bottles with stoppers are labeled "ammon...
    • Golden (Colo.)--1920-1930.; Classrooms--Colorado--Golden--1920-1930.; Universities & colleges--Colorado--Golden--1920-1930.; Colorado School of Mines.
    • [between 1920 and 1930]
    • Main Street, Canon City

    • Brick and stone two-story commercial buildings line Main Street in Canon City, Colorado. They have gauge arched windows, awnings, cornices, storefronts, and a sign: "Drugs." Incised stone pediments read:"Baker and Biggs," and "Record Block." The...
    • Canon City (Colo.)--1900-1910.; Streets--Colorado--Canon City--1900-1910.
    • [between 1900 and 1910?]
    • Argo smelting works (Boston and Colorado Smelting Co.)

    • Interior view of an Argo Smelting Works building, owned by the Boston and Colorado Smelting Company, Denver, Colorado, shows a chimney surrounded by gutters emanating from a furnace. One of the furnace doors is open as a man uses a long steel rod...
    • Argo Smelting Company (Denver, Colo.)--1890-1900.; Boston & Colorado Gold and Silver Smelting Company--1890-1900.; Denver (Colo.)--1890-1900.; Furnaces--Colorado--Denver--1890-1900.; Interiors--Colorado--Denver--1890-1900.;...
    • 1892
    • Argo smelter refinery

    • Interior view of an Argo smelting works building, owned by the Boston and Colorado Smelting Company, Denver, Colorado, shows a stack of crucibles on top of a furnace, a hoist, and a cart.
    • Argo Smelting Company (Denver, Colo.)--1890-1900.; Boston & Colorado Gold and Silver Smelting Company--1890-1900.; Crucibles--Colorado--Denver--1890-1900.; Denver (Colo.)--1890-1900.; Furnaces--Colorado--Denver--1890-1900.;...
    • 1892
    • Wm. Beynon, died 1926, Argo Smelter, refinery

    • William Beynon stands next to a cart in the Boston & Colorado Smelting Company's Argo Smelting Works refinery, Denver, Colorado shows: furnace, crucibles, and chain hoists.
    • Argo Smelting Company (Denver, Colo.); Boston & Colorado Gold and Silver Smelting Company.; Denver (Colo.)--1890-1900.; Interiors--Colorado--Denver--1890-1900.; Mining--Colorado--Denver--1890-1900.; Smelters--Colorado--Denver--1890-1900.; Beynon,...
    • 1892
    • Argo Smelting Works (Boston and Colorado Smelting Co.)

    • Boston & Colorado Smelting Company's Argo Smelting Works refinery in Denver, Colorado shows: brick covered furnace with attached troughs, and a hopper.
    • Argo Smelting Company (Denver, Colo.); Boston & Colorado Gold and Silver Smelting Company.; Denver (Colo.)--1890-1900.; Interiors--Colorado--Denver--1890-1900.; Mining--Colorado--Denver--1890-1900.; Smelters--Colorado--Denver--1890-1900.
    • 1892
    • Argo Smelting Works (Boston and Colorado Smelting Co.)

    • Boston & Colorado Smelting Company's Argo Smelting Works refinery in Denver, Colorado shows: brick covered furnace and chimney, hoppers, troughs.
    • Argo Smelting Company (Denver, Colo.); Boston & Colorado Gold and Silver Smelting Company.; Denver (Colo.)--1890-1900.; Interiors--Colorado--Denver--1890-1900.; Mining--Colorado--Denver--1890-1900.; Smelters--Colorado--Denver--1890-1900.
    • 1892
    • Argo smelter, tub room silver refinery

    • Boston & Colorado Smelting Company's Argo Smelting Works refinery in Denver, Colorado shows: row of round, wood tanks and rectangular containers.
    • Argo Smelting Company (Denver, Colo.); Boston & Colorado Gold and Silver Smelting Company.; Denver (Colo.)--1890-1900.; Interiors--Colorado--Denver--1890-1900.; Mining--Colorado--Denver--1890-1900.; Smelters--Colorado--Denver--1890-1900.
    • 1892
    • Argo Smelting Works (Boston and Colorado Smelting Co.)

    • Construction of a brick chimney at the Boston & Colorado Smelting Company's Argo Smelting Works refinery in Denver, Colorado shows: wood scaffolding, barrels, building materials.
    • Argo Smelting Company (Denver, Colo.); Boston & Colorado Gold and Silver Smelting Company.; Denver (Colo.)--1890-1900.; Chimneys--Colorado--Denver--1890-1900.; Construction--Colorado--Denver--1890-1900.; Mining--Colorado--Denver--1890-1900.;...
    • 1892
    • Ino George, Jack O'Conner

    • Ino George, with shovel, and Jack O'Conner inside the Boston & Colorado Smelting Company's Argo Smelting Works refinery in Denver, Colorado shows: brick covered furnace and chimney, with hoppers, troughs.
    • Argo Smelting Company (Denver, Colo.); Boston & Colorado Gold and Silver Smelting Company.; Denver (Colo.)--1890-1900.; Interiors--Colorado--Denver--1890-1900.; Mining--Colorado--Denver--1890-1900.; Smelters--Colorado--Denver--1890-1900.; George,...
    • 1892
    • Argo smelting

    • Boston & Colorado Smelting Company's Argo Smelting Works refinery in Denver, Colorado shows: brick covered furnace and chimney, shovel, mallet, hoppers.
    • Argo Smelting Company (Denver, Colo.); Boston & Colorado Gold and Silver Smelting Company.; Denver (Colo.)--1890-1900.; Interiors--Colorado--Denver--1890-1900.; Mining--Colorado--Denver--1890-1900.; Smelters--Colorado--Denver--1890-1900.
    • 1892
    • Chas Johnson, Ino George

    • Ino George, with shovel, and Charles Johnson inside the Boston & Colorado Smelting Company's Argo Smelting Works refinery in Denver, Colorado shows: brick covered furnace and chimney with hoppers.
    • Argo Smelting Company (Denver, Colo.); Boston & Colorado Gold and Silver Smelting Company.; Denver (Colo.)--1890-1900.; Interiors--Colorado--Denver--1890-1900.; Mining--Colorado--Denver--1890-1900.; Smelters--Colorado--Denver--1890-1900.; George,...
    • 1892
    • Main Street, Canon City

    • The Annex Building, in Canon City, Colorado, is under construction; workmen, scaffolding, and a ladder are ranged on the steel understructure and the trio of carved stone arches, columns and entablature on the second floor. The Smith Building has...
    • Canon City (Colo.)--1900-1910.; Business districts--Colorado--Canon City--1900-1910.
    • 1901
    • The Real Pioneers of Colorado

    • Transcript of a document originally written by Maria Davies McGrath in 1934. This document contains transcripts of all three volumes, arranged alphabetically by pioneers last name. Within each entry is a brief biography of the individual (s) who...
    • Pioneers--Colorado.; Colorado--Biography.
    • 1934
    • Ontario Mining Accidents : 1892-1922

    • Index of mining accidents in Ontario, Canada between the years 1892 and 1922. Index is an alphabetical list by miner’s name for fatal and non-fatal mine accidents.
    • Mine accidents--Ontario--Indexes.
    •  
    • Pre-1963 Colorado mining fatalities

    • 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.
    • 1995
    • Index to Colorado Mining Directory: First Edition 1883

    • Index to mines within Colorado. Information is arranged alphabetically by Mine name, with the county it is located in.
    • Mines and mineral industries--Colorado--Directories.; Mines and mineral resources--Colorado--Directories.;
    • 1883

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