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  • All fields: operations
(2599 results)



Display: 50

    • 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

    • 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

    • 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

    • 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

    • 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
    • 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)

    • 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
    • Denver parks work crew

    • A Denver Parks work crew sit and laugh on a horse drawn wagon in a Denver, Colorado park. A hose hangs from the wagon and lawn mowing machinery is inside. The driver is identified as Carl Schefelen, the others are identified (left to right) as Jay...
    • Denver (Colo.). Dept. of Parks and Recreation--People.; Denver (Colo.)--1910-1920.; Washington Park (Denver, Colo.)--1910-1920.; Carts & wagons--Colorado--Denver--1910-1920.; Employees--Colorado--Denver--1910-1920.;...
    •  
    • 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

    • 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

    • 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

    • 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

    • 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
    • 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
    • Municipal Facts: Volume 1 Number 10, 1918 December

    • Newsletter produced monthly by the City of Denver highlighting the civic, administrative, and informational aspects of government within the City.
    • Local government--Colorado--Denver.; Cities and towns--Colorado--Denver.
    • 1918 December
    • 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

    • 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

    • 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?]
    • Municipal Facts: Volume 2 Number 12, 1919 December

    • Newsletter produced monthly by the City of Denver highlighting the civic, administrative, and informational aspects of government within the City.
    • Local government--Colorado--Denver.; Cities and towns--Colorado--Denver.
    • 1919 December
    • 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

    • 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]
    • 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?]
    • Site of Arapahoe Bar

    • View of Arapahoe City, (Arapahoe, Arapahoe Bar) pioneer placer mining camp, earliest town in Jefferson County, Colorado, organized in 1858, named for the Arapaho Indians; gold dredging operations in 1904 left tailing dumps on a site along Clear...
    • Gold dredging--Colorado--Arapahoe City--1920-1930.; Arapahoe City (Colo.)--1920-1930.; Tailings (Metallurgy)--Colorado--Arapahoe City--1920-1930.
    • July 1928
    • 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
    • Georgetown, Colorado

    • View northeast over Georgetown, Colorado. The Julius Pohle house is along the road to Silver Plume. Chimney Rock is void of its smokestack. Griffith, Woodchuck and Saxon Mountains are in background. Landmarks include: original Catholic church, Our...
    • Georgetown (Colo.)--1900-1920.
    • [between 1900 and 1917]
    • Leadville

    • View from Carbonate Hill northwest across Leadville, Colorado, includes wood frame residences, the old High School, the Annunciation Church, the Ninth Street School, the Colorado and Southern Railroad depot and yards, and crushers, smelters with...
    • Leadville (Colo.)--1900-1910.; Cities & towns--Colorado--Leadville--1900-1910.; Mining--Colorado--Leadville--1900-1910.; Colorado and Southern Railway.
    • [1905?]
    • 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?]
    • Colorado Yule Marble quarry

    • View of a Colorado Yule Marble Company quarry east side of Yule Creek, 4 miles south of Marble (Gunnison County), Colorado. Channeling machines on tracks to drill vertical holes into the marble and a large metal frame used for hoisting the stone...
    • Colorado Yule Marble Company--Facilities--1910-1920.; Marble (Colo.)--1910-1920.; Machinery--Colorado--Marble--1910-1920.; Marble quarrying--Colorado--Marble--1910-1920.; Saws--Colorado--Marble--1910-1920.
    • [between 1914 and 1917?]
    • Pacific Electric Ry. car 4644 and one other white bus 2062, Santa Ana, Calif.

    • Pacific Electric Railway Company interurban streetcar 4644 (Bellflower) and White Bus Lines bus number 2062 wait in the rail yard in Santa Ana (Orange County), California. Shows an Atchison Topeka and Santa Fe boxcar and automobiles. Signs read:...
    • Pacific Electric Railway Company--1940-1950.; White Bus Lines--1940-1950.; Santa Ana (Calif.)--1940-1950.; Buses--California--Santa Ana--1940-1950.; Business districts--California--Santa Ana--1940-1950.; Electric railroads--California--Santa...
    • 1946 November 17
    • City of L'ville, Carbonate Hill, Mosquito Range in background

    • View east from Capitol Hill over the town of Leadville to Carbonate Hill and the Mosquito Range, Colorado. The scene includes a muddy street in the foreground, rooftops of wood frame residences, false fronts, churches, the old Lake County...
    • Leadville (Colo.)--1900-1910.; Mining--Colorado--Leadville--1900-1910.; Streets--Colorado--Leadville--1900-1910.
    • [between 1900 and 1910]
    • St. Joe National Forest, Shoshone Co., Idaho

    • Burned trees are on a hillside near a steep chute or flume in Saint Joe National Forest in Shoshone County, Idaho. A man sits on a burned log beside a canvas tent and a timber and tarpaper shack near railroad tracks. A Milwaukee Lumber Company...
    • Milwaukee Lumber Company--1890-1910.; Saint Joe National Forest (Idaho)--1890-1910.; Shoshone County (Idaho)--1890-1910.; Flumes--Idaho--Shoshone County--1890-1910.; Forest fires--Idaho--Shoshone County--1890-1910.; Forest reserves--Idaho--Shoshone...
    • [between 1895 and 1910?]
    • Leadville

    • View from Carbonate Hill northwest across Leadville, Colorado presents a town filled with wood frame residences, barns, sheds, mining operations and few brick commercial structures. The Sawatch Range of the continental divide in background.
    • Leadville (Colo.)--1880-1890.; Mountains--Colorado--1870-1880.
    • [1879?]
    • Denver City Cable Railway Building

    • Exterior photograph of the Denver City Cable Railway Building, the Tramway Cable Building, or the Spaghetti Factory in Denver, Colorado. The two-story red brick building was constructed in 1889 to house the operations of the Denver City Cable...
    • Denver City Cable Railway Company (Denver, Colo.)--Buildings--1970-1980.; Historic Buildings.; Historic preservation--Colorado--Denver.; Historic buildings--Colorado--Denver.; Architecture--Colorado--Denver--History.
    • 1978 May
    • 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
    • Leadville

    • View, from Chicken Hill, northwest across Leadville, Colorado shows a town filled with wood frame residences and a few false front, large mining operations in the foreground with tall smokestacks and mine tailings. Snow covered slopes are in the...
    • Leadville (Colo.)--1900-1910.; Mining--Colorado--Leadville--1900-1910.
    • [1905?]
    • Denver City Cable Railway Building

    • Exterior photograph of the Denver City Cable Railway Building, the Tramway Cable Building, or the Spaghetti Factory in Denver, Colorado. The two-story red brick building was constructed in 1889 to house the operations of the Denver City Cable...
    • Denver City Cable Railway Company (Denver, Colo.)--Buildings--1970-1980.; Historic Buildings.; Historic preservation--Colorado--Denver.; Historic buildings--Colorado--Denver.; Architecture--Colorado--Denver--History.
    • 1978 May
    • Denver City Cable Railway Building

    • Exterior photograph of the Denver City Cable Railway Building, the Tramway Cable Building, or the Spaghetti Factory in Denver, Colorado. The two-story red brick building was constructed in 1889 to house the operations of the Denver City Cable...
    • Denver City Cable Railway Company (Denver, Colo.)--Buildings--1970-1980.; Historic Buildings.; Historic preservation--Colorado--Denver.; Historic buildings--Colorado--Denver.; Architecture--Colorado--Denver--History.
    • 1978 May
    • Denver Mint

    • Exterior photograph of the entrance to the United States Mint located in Denver, Colorado. The Denver Mint was officially established in 1895, and the original two-story Second Renaissance Revival style granite building was completed in 1904. ...
    • United States Mint (Denver, Colo.)--1990-2000.; Civic Center (Denver, Colo. : Neighborhood)--1990-2000.; Mints--Colorado--Denver--1990-2000.; Mint of the United States--Buildings--1990-2000.; Historic Buildings.; Historic...
    • 1990 June
    • Leadville

    • View from Carbonate Hill northwest across Leadville, Colorado, shows a town filled with wood frame residences, barns, sheds, brick commercial and public structures and mining operations with smokestacks and tailings. Landmarks include the Church...
    • Church of the Annunciation (Leadville, Colo.)--1900-1910.; Tabor Opera House--1900-1910.; Vendome Hotel--1900-1910.; Leadville (Colo.)--1900-1910.; Mining--Colorado--Leadville--1900-1910.
    • [1905?]
    • Denver City Cable Railway Building

    • Exterior photograph of the Denver City Cable Railway Building, the Tramway Cable Building, or the Spaghetti Factory in Denver, Colorado. The two-story red brick building was constructed in 1889 to house the operations of the Denver City Cable...
    • Denver City Cable Railway Company (Denver, Colo.)--Buildings--1970-1980.; Historic Buildings.; Historic preservation--Colorado--Denver.; Historic buildings--Colorado--Denver.; Architecture--Colorado--Denver--History.
    • 1978 May
    • Denver Mint

    • Interior photograph of a hallway and chandelier in the United States Mint located in Denver, Colorado. The Denver Mint was officially established in 1895, and the original two-story Second Renaissance Revival style granite building was completed...
    • United States Mint (Denver, Colo.)--1980-1990.; Civic Center (Denver, Colo. : Neighborhood)--1980-1990.; Mints--Colorado--Denver--1980-1990.; Mint of the United States--Buildings--1980-1990.; Historic Buildings.; Historic...
    • 1989 November
    • Tooele Valley Ry. 2-8-0 #11, International, Utah.

    • Smoke rises from Tooele Valley Railway locomotive #11 in International (Tooele County), Utah. Shows railroad workers beside the locomotive, probably a lime kiln operations plant, and frame or metal sided buildings on a snow-covered hillside.
    • Tooele Valley Railway--1950-1960.; International (Utah)--1950-1960.; Industrial facilities--Utah--International--1950-1960.; Industry--Utah--International--1950-1960.; Railroads--Utah--International--1950-1960.
    • 1955 February 22
    • Denver Mint

    • Interior photograph of a hallway in the United States Mint located in Denver, Colorado. The Denver Mint was officially established in 1895, and the original two-story Second Renaissance Revival style granite building was completed in 1904. ...
    • United States Mint (Denver, Colo.)--1980-1990.; Civic Center (Denver, Colo. : Neighborhood)--1980-1990.; Mints--Colorado--Denver--1980-1990.; Mint of the United States--Buildings--1980-1990.; Historic Buildings.; Historic...
    • 1989 November
    • Leadville

    • This view from Carbonate Hill northwest across Leadville, Colorado, looking at the south part of town includes crushers, smelters with smokestacks, and tailings of mining operations. The Midland Railroad's California Gulch Trestle, Harrison...
    • Leadville (Colo.)--1900-1910.; Mining--Colorado--Leadville--1900-1910.; Midland Railway Company.
    • [1905?]

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