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  • All fields: Operations
(2600 results)



Display: 50

    • Office of Civil Defense Emergency Operations Center

    • Office of Civil Defense Emergency Operations Center

    • Photograph of the Office of Civil Defense Emergency Operations Center located in Lakewood, Colorado. The circa 1960, bunker-like building is associated with Cold War Era military history. Designed for temporary use during an emergency, the...

    • Historic Buildings.; Historic preservation--Colorado--Lakewood.; Historic buildings--Colorado--Lakewood.; Architecture--Colorado--Lakewood--History.

    • 1999
    • Office of Civil Defense Emergency Operations Center

    • Office of Civil Defense Emergency Operations Center

    • Photograph of the Office of Civil Defense Emergency Operations Center located in Lakewood, Colorado. The circa 1960, bunker-like building is associated with Cold War Era military history. Designed for temporary use during an emergency, the...

    • Historic Buildings.; Historic preservation--Colorado--Lakewood.; Historic buildings--Colorado--Lakewood.; Architecture--Colorado--Lakewood--History.

    • 1998
    • Office of Civil Defense Emergency Operations Center

    • Office of Civil Defense Emergency Operations Center

    • Photograph of the Office of Civil Defense Emergency Operations Center located in Lakewood, Colorado. The circa 1960, bunker-like building is associated with Cold War Era military history. Designed for temporary use during an emergency, the...

    • Historic Buildings.; Historic preservation--Colorado--Lakewood.; Historic buildings--Colorado--Lakewood.; Architecture--Colorado--Lakewood--History.

    • 1999
    • Office of Civil Defense Emergency Operations Center

    • Office of Civil Defense Emergency Operations Center

    • Photograph of the Office of Civil Defense Emergency Operations Center located in Lakewood, Colorado. The circa 1960, bunker-like building is associated with Cold War Era military history. Designed for temporary use during an emergency, the...

    • Historic Buildings.; Historic preservation--Colorado--Lakewood.; Historic buildings--Colorado--Lakewood.; Architecture--Colorado--Lakewood--History.

    • 1999
    • Office of Civil Defense Emergency Operations Center

    • Office of Civil Defense Emergency Operations Center

    • Photograph of the Office of Civil Defense Emergency Operations Center located in Lakewood, Colorado. The circa 1960, bunker-like building is associated with Cold War Era military history. Designed for temporary use during an emergency, the...

    • Historic Buildings.; Historic preservation--Colorado--Lakewood.; Historic buildings--Colorado--Lakewood.; Architecture--Colorado--Lakewood--History.

    • 1998
    • Defense Civil Preparedness Agency

    • Defense Civil Preparedness Agency

    • Photograph of the Defense Civil Preparedness Agency located in Lakewood, Colorado. Building 710 was constructed in 1969 and is important for its association with Cold War Era military history. Designed to withstand a nuclear attack, the two-story...

    • Historic Buildings.; Historic preservation--Colorado--Lakewood.; Historic buildings--Colorado--Lakewood.; Architecture--Colorado--Lakewood--History.

    • Undated
    • Defense Civil Preparedness Agency

    • Defense Civil Preparedness Agency

    • Photograph of the Defense Civil Preparedness Agency located in Lakewood, Colorado. Building 710 was constructed in 1969 and is important for its association with Cold War Era military history. Designed to withstand a nuclear attack, the two-story...

    • Historic Buildings.; Historic preservation--Colorado--Lakewood.; Historic buildings--Colorado--Lakewood.; Architecture--Colorado--Lakewood--History.

    • 1999
    • Defense Civil Preparedness Agency

    • Defense Civil Preparedness Agency

    • Photograph of the Defense Civil Preparedness Agency located in Lakewood, Colorado. Building 710 was constructed in 1969 and is important for its association with Cold War Era military history. Designed to withstand a nuclear attack, the two-story...

    • Historic Buildings.; Historic preservation--Colorado--Lakewood.; Historic buildings--Colorado--Lakewood.; Architecture--Colorado--Lakewood--History.

    • 1999
    • Defense Civil Preparedness Agency

    • Defense Civil Preparedness Agency

    • Photograph of the Defense Civil Preparedness Agency located in Lakewood, Colorado. Building 710 was constructed in 1969 and is important for its association with Cold War Era military history. Designed to withstand a nuclear attack, the two-story...

    • Historic Buildings.; Historic preservation--Colorado--Lakewood.; Historic buildings--Colorado--Lakewood.; Architecture--Colorado--Lakewood--History.

    • 1998
    • Defense Civil Preparedness Agency

    • Defense Civil Preparedness Agency

    • Photograph of the Defense Civil Preparedness Agency located in Lakewood, Colorado. Building 710 was constructed in 1969 and is important for its association with Cold War Era military history. Designed to withstand a nuclear attack, the two-story...

    • Historic Buildings.; Historic preservation--Colorado--Lakewood.; Historic buildings--Colorado--Lakewood.; Architecture--Colorado--Lakewood--History.

    • 1999
    • Defense Civil Preparedness Agency

    • Defense Civil Preparedness Agency

    • Photograph of the hallway in the Defense Civil Preparedness Agency located in Lakewood, Colorado. Building 710 was constructed in 1969 and is important for its association with Cold War Era military history. Designed to withstand a nuclear...

    • Historic Buildings.; Historic preservation--Colorado--Lakewood.; Historic buildings--Colorado--Lakewood.; Architecture--Colorado--Lakewood--History.

    • 1998
    • Coal Creek Agricultural Site (Grasso Park) barn

    • Coal Creek Agricultural Site (Grasso Park) barn

    • Exterior photograph of a barn at the Coal Creek Agricultural Site (Grasso Park), located in Superior, Colorado. The collection of structures on the site includes a root cellar; a circa 1904 house; a barn; a privy; and a circa 1895 house. When...

    • Historic Buildings.; Historic preservation--Colorado--Superior.; Historic buildings--Colorado--Superior.; Architecture--Colorado--Superior--History.

    • 1997 September
    • Coal Creek Agricultural Site (Grasso Park)

    • Coal Creek Agricultural Site (Grasso Park)

    • Photograph looking to the south west of the Coal Creek Agricultural Site (Grasso Park), located in Superior, Colorado. The collection of structures on the site includes a root cellar; a circa 1904 house; a barn; a privy; and a circa 1895 house. ...

    • Historic Buildings.; Historic preservation--Colorado--Superior.; Historic buildings--Colorado--Superior.; Architecture--Colorado--Superior--History.

    • 1997 September
    • Quebec Mining Accidents : 1909-1936

    • Quebec Mining Accidents : 1909-1936

    • Index of mining accidents in Quebec, Canada between the years 1909 and 1936. Index is an alphabetical list by miner’s name for fatal and non-fatal mine accidents.

    • Mine accidents--Quebec--Indexes.

    • 2007 June
    • Placer operations

    • Placer operations

    • A view of placer mining operations probably in Colorado.

    • Hydraulic mining--Colorado--1890-1910.; Mining--Colorado--1890-1910.

    • [between 1890 and 1910]
    • Operations room, Denver Police Department

    • Operations room, Denver Police Department

    • A group of men in suits pose in a operations room at the Denver Police Department in Denver, Colorado. An operator sits behind a desk where roles of ticker tape and telegraph machines are arranged. Electrical switches, dials, and light bulbs are...

    • Denver (Colo.)--1900-1920.; Interiors--Colorado--Denver--1900-1920.; Offices--Colorado--Denver--1900-1920.; Police stations--Colorado--Denver--1900-1920.; Police--Colorado--Denver--1900-1920.

    • [between 1908 and 1915?]
    • Dismantling operations on Colorado Central

    • Dismantling operations on Colorado Central

    • A view of the dismantling of the Colorado Central railroad shows a group of people on a railroad hand-car with a load of iron rails near Central City (Teller County), Colorado. Wood-frame houses are in the distance.

    • Colorado Central Railroad Company--Equipment & supplies--1980-1990.; Central City (Colo.)--1980-1990.; Demolition--Colorado--Central City--1980-1990.; Railroad handcars--Colorado--Central City--1980-1990.

    • 1981 Nov. 14
    • Headquarters for AMAX Western Operations, Golden, Colorado

    • Headquarters for AMAX Western Operations, Golden, Colorado

    • View across the landscaped parking lot of the AMAX Western Operations headquarters, Golden, Jefferson County, Colorado, shows the two- story brick building with intersecting shingle hipped roofs. Parked automobiles include: Camaro, Mercedes, Pinto,...

    • AMAX, Inc.--1980-1990.; Golden (Colo.)--1980-1990.; Mining--Colorado--Golden--1980-1990.

    • [1980]
    • Mines, Gilpin County, Colo.

    • Mines, Gilpin County, Colo.

    • View of mines and mining operations near Central City, Gilpin County, Colo. during the winter.

    • Gold mines and mining--Colorado--Gilpin County--2000-2010.; Gilpin County (Colo.)--2000-2010.; Gold mines and mining--Colorado--Gilpin County--Pictorial works.; Gilpin County (Colo.)--Pictorial works.

    • 2005
    • Ranch-Way Feed Mills, Fort Collins, Colo.

    • Ranch-Way Feed Mills, Fort Collins, Colo.

    • View of Ranch Way Feeds located at 546 Willow Street, Fort Collins, Colo. In 1948, an existing flour mill was converted to a feed plant. Locally owned since 1968, Ranch Way Feeds now manufacturers a wide range of feed for birds, livestock,...

    • Feed industry--Colorado--Fort Collins--2000-2010.; Fort Collins (Colo.)--2000-2010.; Ranch-Way Feed Mills (Fort Collins, Colo.)--Pictorial works.; Feed industry--Colorado--Fort Collins--Pictorial works.; Fort Collins (Colo.)--Pictorial works.

    • 2000
    • Cecil Hernandez

    • Cecil Hernandez

    • Cecil Hernandez, a Mexican immigrant and founder of MasterCraft Cabinets, Inc., reads an issue of La Voz, Colorado's first bilingual newspaper, Denver, Colorado.

    • Hispanic Americans--1980-1990.; Mexican Americans--1980-1990.; Denver (Colo.)--1980-1990.; Business people.; Hernandez, Cecil--Pictorial works.; Businessmen--Colorado--Denver--Pictorial works.; Hispanic Americans--Colorado--Pictorial works.;...

    • 1984
    • Mine rescue team

    • Mine rescue team

    • A group of miners with rescue equipment pose near the mouth of a mine possibly in Las Animas County, Colorado. Many of the men hold face masks with tubes connected to respirator mechanisms strapped to their chests.

    • Coal mining--Colorado--1900-1910.; Mine rescue work--Colorado--1900-1910.

    • c 1900
    • Barlow-Colorow Mine, Rainbow Lode

    • Barlow-Colorow Mine, Rainbow Lode

    • View of Uintah Basin in (Uintah County), Utah; shows Gilsonite mining operations north of Rainbow Junction, Uintah Railway railroad tracks, the Rainbow Vein, a trestle, snow, and sandstone cliffs.

    • Uintah Railway--1890-1910.; Uintah County (Utah)--1890-1910.; Mining--Utah--Uintah County--1890-1910.

    • [between 1890 and 1910?]
    • Mines and smelters near Leadville

    • Mines and smelters near Leadville

    • View of mining operations in Leadville (Lake County), Colorado; shows processing sheds, smoke, tailings, and the Collegiate Range mountains.

    • Leadville (Colo.)--1900-1920.; Mine buildings--Colorado--Leadville--1900-1920.; Mining--Colorado--Leadville--1900-1920.

    • [between 1900 and 1920?]
    • Tunnel of the Hope M. M. & L. at Aspen, Colo.

    • Tunnel of the Hope M. M. & L. at Aspen, Colo.

    • View of Hope Mine Company operations near Aspen (Pitkin County), Colorado; shows the mine entrance, tailings, ore processing sheds, a smokestack, lumber, and railroad grade.

    • Hope Mine (Pitkin County, Colo.)--1910-1920.; Pitkin County (Colo.)--1910-1920.; Mining--Colorado--Pitkin County--1910-1920.; Tailings embankments--Colorado--Pitkin County--1910-1920.

    • [between 1910 and 1920?]
    • Boulder, Colorado - excavating to lay pipe

    • Boulder, Colorado - excavating to lay pipe

    • View of ditch digging operations in Boulder (Boulder County) Colorado; men stand by a truck mounted backhoe.

    • Boulder (Colo.)--1940-1950.; Backhoes--Colorado--Boulder--1940-1950.; Digging--Colorado--Boulder--1940-1950.

    • [between 1940 and 1950?]
    • Mining pit and tailings

    • Mining pit and tailings

    • View of mine operations or a gravel plant in (probably) Colorado; a processing building has a drive through loading chute. Ponds, railroad grade, a town, mountains and cirrus clouds are in the distance.

    • Sand and gravel plants--Colorado--1940-1950.; Mining--Colorado--1940-1950.

    • [between 1940 and 1950?]
    • Aspen and Aspen Mt.

    • Aspen and Aspen Mt.

    • A view of Aspen (Pitkin County), Colorado, and Aspen Mountain. Shows houses, public buildings and churches, and the Roaring Fork River. Railroad grades, mining operations and pine trees are visible on the mountain.

    • Aspen (Colo.)--1880-1910.; Aspen Mountain (Colo.)--1880-1890.; Roaring Fork River (Colo.)--1880-1890.; Cities & towns--Colorado--Aspen--1880-1910.; Rivers--Colorado--Aspen--1880-1910.

    • [between 1880 and 1910?]
    • Georgetown, Col.

    • Georgetown, Col.

    • An aerial view of Georgetown (Clear Creek County), Colorado. Shows wood-frame houses, commercial and public buildings. Mining operations, railroad grades and a trestle are seen in the distance.

    • Georgetown (Colo.)--1880-1910.; Cities & towns--Colorado--Georgetown--1880-1910.

    • [between 1880 and 1910?]
    • Keystone placer mine giant at work

    • Keystone placer mine giant at work

    • View of mining operations at the Keystone Mine in San Miguel County, Colorado. Shows sluice boxes and a large pipe with hydraulic nozzles.

    • Keystone Mine (San Miguel County, Colo.)--1880-1900.; San Miguel County (Colo.)--1880-1900.; Flumes--Colorado--San Miguel County--1880-1900.; Hydraulic mining--Colorado--San Miguel County--1880-1900.; Mining--Colorado--San Miguel County--1880-1900.

    • [between 1882 and 1900?]
    • Placer mining on the San Miguel River

    • Placer mining on the San Miguel River

    • View of mining operations along the San Miguel River in San Miguel County, Colorado. Plumes of water emerge from pipes with hydraulic nozzles (monitors).

    • San Miguel County (Colo.)--1880-1900.; San Miguel River (Colo.)--1880-1900.; Hydraulic mining--Colorado--San Miguel County--1880-1900.; Mining--Colorado--San Miguel County--1880-1900.; Rivers--Colorado--San Miguel County--1880-1900.

    • [between 1882 and 1900?]
    • Hydraulic Mining

    • Hydraulic Mining

    • View of placer mining operations in probably Alder Gulch (Madison County), Montana. Men spray water at an embankment with monitor nozzles.

    • Alder Gulch (Madison County, Mont.)--1880-1900.; Madison County (Mont.)--1880-1900.; Gold mining--Montana--Madison County--1880-1900.; Hydraulic mining--Montana--Madison County--1880-1900.; Miners--Montana--Madison County--1880-1900.;...

    • [between 1880 and 1900?]
    • Corner Harrison & 9th showing 9th St. School (brick bldg)

    • Corner Harrison & 9th showing 9th St. School (brick bldg)

    • This view east from the corner of Harrison Avenue and 9th Ninth Street shows the 9th St. School with St. Mary's Catholic School beyond in Leadville, Colorado. The foreground includes snowcovered ground where a man walks up a hill, bare sidewalk,...

    • Leadville (Colo.)--1880-1890.; Mining--Colorado--Leadville--1880-1890.; Schools--Colorado--Leadville--1880-1890.

    • [between 1880 and 1890?]
    • Corner Harrison & 9th showing 9th St. School (brick bldg)

    • Corner Harrison & 9th showing 9th St. School (brick bldg)

    • View east from corner of Harrison Avenue and 9th (Ninth Street) showing 9th St. School with St. Mary's Catholic School beyond, Leadville, Colorado. Foreground includes snowcovered ground and streets, bare sidewalk, fire hydrant spigot, streetlight...

    • Leadville (Colo.)--1880-1890.; Mining--Colorado--Leadville--1880-1890.; Schools--Colorado--Leadville--1880-1890.

    • [between 1880 and 1890?]
    • Leadville

    • Leadville

    • The Sawatch Range of the continental divide is in the background of this view northwest over snowcovered Leadville, Colorado. Mining operations, a smelter and a railroad trestle are in the foreground.

    • Leadville (Colo.)--1930-1940.; Mining--Colorado--Leadville--1930-1940.

    • [between 1930 and 1940]
    • Leadville

    • Leadville

    • View west over Upper Arkansas Valley from foot of of Freyer Hill along 8th (Eighth) and 9th (Ninth) Street, Leadville, Lake County, Colorado. Shows the County Courthouse, First Methodist Episcopal Church, Church of the Annunciation, 9th Street...

    • Leadville (Colo.)--1910-1920.; Massive, Mount (Colo.)--1910-1920.; Smokestacks--Colorado--Leadville--1910-1920.; Streets--Colorado--Leadville--1910-1920.

    • [1912]
    • Ophir flotation mill

    • Ophir flotation mill

    • View of a flotation mill near Ophir, San Miguel County, Colorado.

    • Ophir (Colo.)--1920-1930.; Flotation--Colorado--Ophir--1920-1930.; Mining--Colorado--Ophir--1920-1930.

    • 1929
    • View of the works of the Windham Silver Mining and Smelting Company, at Windham, Ouray County,...

    • View of the works of the Windham Silver Mining and Smelting Company, at Windham, Ouray County, Colorado

    • At Windham Silver Mining and Smelting operations, in Windham, Ouray County, Colorado, bull and mule teams are by the processing plant; water spills from a flume.

    • Windham Silver Mining and Smelting Company (Windham, Colo.)--1870-1880.; Windham (Colo.)--1870-1880.; Animal teams--Colorado--Windham--1870-1880.; Carts & wagons--Colorado--Windham--1870-1880.; Flumes--Colorado--Windham--1870-1880.; Ore...

    • [between 1870 and 1880]
    • Midland Terminal Station, Cripple Creek

    • Midland Terminal Station, Cripple Creek

    • Exterior view of Cripple Creek District Museum (formerly Midland Terminal Railway Station), Cripple Creek, Colorado; building was constructed in 1896, closed in 1949 after railroad halted operations, and reopened in 1953 as a private nonprofit...

    • Cripple Creek (Colo.)--1960-1970.; Galleries & museums--Colorado--Cripple Creek--1960-1970.; Railroad stations--Colorado--Cripple Creek--1960-1970.

    • 1969 December 17
    • In a Denver packing plant

    • In a Denver packing plant

    • View of cattle-butchering operations in a Denver, Colorado packing plant; shows vat, hides, carcasses, butchers and men observing in white coats.

    • Denver (Colo.)--1920-1930.; Meat industry--Colorado--Denver--1920-1930.; Slaughtering--Colorado--Denver--1920- 1930.

    • [1920?]

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