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Display: 50

    • Continental Oil Shale and Refining Co., Rio Blanco Co.

    • Continental Oil Shale and Refining Co., Rio Blanco Co.

    • View of Continental Oil Shale and Refining Company corrugated metal-sided buildings and a brick retort in Rio Blanco County, Colorado. A sign on timber scaffolding near a ladder reads: "The Colorado Continuous Retort, Patent applied for," and a...

    • Oil-shale industry--Colorado--Rio Blanco County--1900-1920.; Oil-shales--Colorado--Rio Blanco County--1900-1920.; Rio Blanco County (Colo.)--1900-1920.; Cliffs--Colorado--Rio Blanco County--1900-1920.; Refineries--Colorado--Rio Blanco...

    • [between 1900 and 1920?]
    • Continental Oil Shale Co. plant under construction

    • Continental Oil Shale Co. plant under construction

    • View of the brick smokestack and timber scaffolding of a Continental Oil Shale Company retort in Rio Blanco County, Colorado. Shows metal parts for the retort, scraps of wood, and snow on the ground nearby.

    • Oil-shale industry--Colorado--Rio Blanco County--1900-1920.; Rio Blanco County (Colo.)--1900-1920.; Building construction--Colorado--Rio Blanco County--1900-1920.; Refineries--Colorado--Rio Blanco County--1900-1920.

    • [between 1900 and 1920?]
    • Brown Retort

    • Brown Retort

    • Men examine a Brown retort under construction at an oil shale processing facility at the Index Shale Oil Company in De Beque (Mesa County) Colorado; part of the retort is in a shed.

    • Index Oil Shale Company--1920-1930.; Oil-shale industry--Colorado--De Beque--1920-1930.; De Beque (Colo.)--1920-1930.; Industrial facilities--Colorado--De Beque--1920-1930.; Petroleum industry--Colorado--De Beque--1920-1930.

    • [between 1920 and 1922?]
    • Still of the Oil Shale Mining Company for the destructive distillation of oil

    • Still of the Oil Shale Mining Company for the destructive distillation of oil

    • Men wear suits or suspenders and work clothes and pose beside a smokestack encased by deteriorated brick walls 22 miles outside of De Beque in Mesa County or Garfield County Colorado. An American flag is attached to scaffolding that surrounds an...

    • Oil-shale industry--Colorado--1900-1920.; Oil-shales--Colorado--1900-1920.; Mining--Colorado--1900-1920.; Refineries--Colorado--1900-1920.

    • [between 1900 and 1917?]
    • Plant of the Continental Oil Shale Mining & Refining Co., Rio Blanco [County], Colo.

    • Plant of the Continental Oil Shale Mining & Refining Co., Rio Blanco [County], Colo.

    • View of a Continental Oil Shale Mining and Refining Company plant on a hillside near layered shale cliffs in Rio Blanco County, Colorado. Shows a brick retort with timber scaffolding and ladders and a sign that reads: "The Colorado Continuous...

    • Oil-shale industry--Colorado--Rio Blanco County--1900-1920.; Oil-shales--Colorado--Rio Blanco County--1900-1920.; Rio Blanco County (Colo.)--1900-1920.; Cliffs--Colorado--Rio Blanco County--1900-1920.; Refineries--Colorado--Rio Blanco...

    • [between 1900 and 1920?]
    • Central City First National Bank, Colorado

    • Central City First National Bank, Colorado

    • A map hangs on the wall behind the man in the right midground. A "Checks" window stands in the left midground.; Two men stand near the "Gold" window inside the First National Bank at the corner of Eureka and Main streets in Central City, Colorado....

    • Central City (Colo.)--1900-1910.; Banking--Colorado--Central City--1910-1920.; Banks--Colorado--Central City--1910-1920.; Gold--Colorado--Central City--1910-1920.; Men--Colorado--Central City--1900-1910.; Scales--1910-1920.

    • [between 1910 and 1920?]
    • Shale ledge at the retort of Cont. Oil Shale Mining Co., Rio Blanco Colo. [?]

    • Shale ledge at the retort of Cont. Oil Shale Mining Co., Rio Blanco Colo. [?]

    • Close-up view of layered shale cliffs in Rio Blanco County, Colorado. Shows steep rock walls and scattered stones on the ground in an area identified as near the Continental Oil Shale Mining Company retort.

    • Oil-shales--Colorado--Rio Blanco County--1900-1920.; Rio Blanco County (Colo.)--1900-1920.; Cliffs--Colorado--Rio Blanco County--1900-1920.

    • [between 1900 and 1920?]
    • Retort of the Continental Oil Shale Mining Co., Rio Blanco Colo., their own patent plant

    • Retort of the Continental Oil Shale Mining Co., Rio Blanco Colo., their own patent plant

    • Close-up view of the brick smokestack and timber scaffolding of a Continental Oil Shale Mining Company retort in Rio Blanco County, Colorado. Shows pulleys or hoisting devices and ladders above a corrugated metal building.

    • Oil-shale industry--Colorado--Rio Blanco County--1900-1920.; Rio Blanco County (Colo.)--1900-1920.; Hoisting machinery--Colorado--Rio Blanco County--1900-1920.; Refineries--Colorado--Rio Blanco County--1900-1920.

    • [between 1900 and 1920?]
    • Mt. Logan retort Simplex

    • Mt. Logan retort Simplex

    • View of an oil shale processing facility (a retort) near De Beque (Mesa County) Colorado; shows sheds, ore cables, chutes, and pipes on a hillside.

    • Oil-shale industry--Colorado--De Beque--1900-1920.; De Beque (Colo.)--1900-1920.; Industrial facilities--Colorado--De Beque--1900-1920.; Petroleum industry--Colorado--De Beque--1900-1920.

    • [between 1900 and 1920?]
    • Index Co., De Beque, Brown retort

    • Index Co., De Beque, Brown retort

    • View of an oil shale processing facility (a retort) near De Beque (Mesa County) Colorado; shows sheds, tanks, men by a cabin, and the Roan Cliffs.

    • Oil-shale industry--Colorado--De Beque--1900-1920.; De Beque (Colo.)--1900-1920.; Roan Cliffs (Utah and Colo.)--1900-1920.; Industrial facilities--Colorado--De Beque--1900-1920.; Petroleum industry--Colorado--De Beque--1900-1920.

    • [between 1900 and 1920?]
    • Brown Retort, Index Shale Oil Co., on Mt. Blaine, near De Beque

    • Brown Retort, Index Shale Oil Co., on Mt. Blaine, near De Beque

    • A man poses by oil shale processing machinery at the Index Oil Company near De Beque (Mesa County) Colorado; shows a retort with a rotating tank with gear and belt drives.

    • Index Shale Oil Company--1920-1930.; Oil-shale industry--Colorado--De Beque--1920-1930.; De Beque (Colo.)--1920-1930.; Machinery--Colorado--De Beque--1920-1930.; Petroleum industry--Colorado--De Beque--1920-1930.

    • [between 1920 and 1930?]
    • Harry Brown - Brown Retort

    • Harry Brown - Brown Retort

    • Harry Brown poses in an oil shale processing facility at the Index Shale Oil Company in De Beque (Mesa County) Colorado; he poses beside a Brown retort (he is probably the inventor) that consists of a hopper, rotating tanks, and exhaust stacks.

    • Index Oil Shale Company--Facilities--1920-1930.; Oil-shale industry--Colorado--De Beque--1920-1930.; De Beque (Colo.)--1920-1930.; Industrial facilities--Colorado--De Beque--1920-1930.; Machinery--Colorado--De Beque--1920-1930.; Petroleum...

    • [between 1920 and 1930?]
    • Retort, Colo. State School of Mines

    • Retort, Colo. State School of Mines

    • Interior view of probably an experimental petroleum distillery at the School of Mines in Golden (Jefferson County), Colorado. Shows a brick furnace with boilers mounted on top, insulated pipes and steel pipes that empty into a retort, a wooden...

    • Colorado School of Mines--Facilities--1910-1920.; Distillation apparatus--Colorado--Golden--1910-1920.; Golden (Colo.)--1910-1920.; Fire extinguishers--1910-1920.; Interiors--Colorado--Golden--1910-1920.; Machinery--Colorado--Golden--1910-1920.;...

    • [between 1915 and 1920?]
    • Retort, Colo. State School of Mines

    • Retort, Colo. State School of Mines

    • Interior view of probably an experimental petroleum distillery at the School of Mines in Golden (Jefferson County), Colorado. Shows a brick furnace with boilers mounted on top, insulated and steel pipes that empty into a retort, a wooden ladder,...

    • Colorado School of Mines--Facilities--1910-1920.; Distillation apparatus--Colorado--Golden--1910-1920.; Golden (Colo.)--1910-1920.; Interiors--Colorado--Golden--1910-1920.; Machinery--Colorado--Golden--1910-1920.; Retorts...

    • [between 1915 and 1920?]
    • The Plant of the Monarch Shale Oil Company using the "Ginet eduction process" De Beque,...

    • The Plant of the Monarch Shale Oil Company using the "Ginet eduction process" De Beque, Colorado

    • View of the Monarch Shale Oil Company mine on a mesa in De Beque (Mesa County), Colorado. Shows the mine entrance and crusher site near layered shale at the top of the formation, a shale conveyor, a crushed shale bin, a retort, a stairway, storage...

    • Monarch Shale Oil Company--1920-1930.; Oil-shale industry--Colorado--De Beque--1920-1930.; De Beque (Colo.)--1920-1930.; Mine buildings--Colorado--De Beque--1920-1930.; Mining--Colorado--De Beque--1920-1930.; Refineries--Colorado--De...

    • [1920 August]
    • Oil shale plant beside Colorado River

    • Oil shale plant beside Colorado River

    • View of the oil shale demonstration plant beside the Colorado River near Rifle (Garfield County), Colorado. Smoke rises from smokestacks of the multi-story building, probably an oil shale retort. Denver and Rio Grande tracks are beside the river,...

    • Oil-shale industry--Colorado--Garfield County--1910-1930.; Colorado River (Colo.-Mexico)--1910-1930.; Garfield County (Colo.)--1910-1930.; Roan Cliffs (Utah and Colo.)--1910-1930.; Cliffs--Colorado--Garfield County--1910-1930.;...

    • [between 1915 and 1930?]
    • Continental Oil Shale and Refining Co., Rio Blanco Co.

    • Continental Oil Shale and Refining Co., Rio Blanco Co.

    • Close-up view of the brick smokestack and timber scaffolding of a Continental Oil Shale and Refining Company retort in Rio Blanco County, Colorado. Shows pulleys or hoisting devices and ladders above a corrugated metal roof.

    • Oil-shale industry--Colorado--Rio Blanco County--1900-1920.; Rio Blanco County (Colo.)--1900-1920.; Building construction--Colorado--Rio Blanco County--1900-1920.; Hoisting machinery--Colorado--Rio Blanco County--1900-1920.;...

    • [between 1900 and 1920?]
    • Continental Oil Shale and Refining Co., Rio Blanco Co.

    • Continental Oil Shale and Refining Co., Rio Blanco Co.

    • View of probably an oil shale retort with a brick smokestack and timber scaffolding in Rio Blanco County, Colorado. Shows ladders above a corrugated metal roof and a sign on the building that reads: "Continental Oil Shale Mining & Ref'g Co." A...

    • Oil-shale industry--Colorado--Rio Blanco County--1910-1930.; Oil-shales--Colorado--Rio Blanco County--1910-1930.; Rio Blanco County (Colo.)--1910-1930.; Cliffs--Colorado--Rio Blanco County--1910-1930.; Refineries--Colorado--Rio Blanco...

    • [between 1910 and 1930?]
    • Continental Oil Shale and Refining Co.

    • Continental Oil Shale and Refining Co.

    • View of a plant of the Colorado Oil Shale Mining & Refining Company near a layered shale cliff near Rifle in Rio Blanco County, Colorado. Shows the brick smokestack of probably a retort, timber scaffolding, ladders, pulleys, and hoists. A man...

    • Oil-shale industry--Colorado--Rio Blanco County--1920-1930.; Oil-shales--Colorado--Rio Blanco County--1920-1930.; Rio Blanco County (Colo.)--1920-1930.; Cliffs--Colorado--Rio Blanco County--1920-1930.; Refineries--Colorado--Rio Blanco...

    • [1920 August]
    • Plant of the Continental Oil Shale Mining & Refining Co., Rio Blanco Co. Colo.

    • Plant of the Continental Oil Shale Mining & Refining Co., Rio Blanco Co. Colo.

    • Men stand and pose beside a Continental Oil Shale Mining and Refining Company retort in Rio Blanco County, Colorado. Shows a brick smokestack, metal pipes, timber scaffolding, pulleys, and hoists. Snow is on shale cliffs nearby.

    • Oil-shale industry--Colorado--Rio Blanco County--1910-1920.; Oil-shales--Colorado--Rio Blanco County--1910-1920.; Rio Blanco County (Colo.)--1910-1920.; Cliffs--Colorado--Rio Blanco County--1910-1920.; Refineries--Colorado--Rio Blanco...

    • [1919 December]
    • DeBeque

    • DeBeque

    • View of oil shale processing facilities at the Index Shale Oil Company in De Beque (Mesa County) Colorado; also shows a retort with machinery, pipes, and sheds.

    • Index Oil Shale Company--1920-1930.; Oil-shale industry--Colorado--De Beque--1920-1930.; De Beque (Colo.)--1920-1930.; Industrial facilities--Colorado--De Beque--1920-1930.; Petroleum industry--Colorado--De Beque--1920-1930.

    • [between 1920 and 1930?]
    • Plant of the Index Shale Oil Co., De Beque, Colo.

    • Plant of the Index Shale Oil Co., De Beque, Colo.

    • View of the Index Shale Oil Company retort near De Beque (Mesa County), Colorado; cliffs of Mount Blaine (Mount Index) are behind sheds, pipes, and tanks.

    • Index Shale Oil Company--Buildings--1920-1930.; Oil-shale industry--Colorado--Mesa County--1920-1930.; Blaine, Mount (Garfield County, Colo.)--1920-1930.; Mesa County (Colo.)--1920-1930.; Industrial facilities--Colorado--Mesa County--1920-1930.;...

    • [between 1920 and 1930?]
    • Oil Shale process

    • Oil Shale process

    • Men pose with shale oil refining machinery (a retort) in Denver, Colorado; the "Michael Egan" clothing store, at 1243 Larimer Street, is in the background.

    • Oil-shale industry--Colorado--Denver--1890-1910.; Denver (Colo.)--1890-1910.; Machinery--Colorado--Denver--1890-1910.

    • [between 1890 and 1910?]
    • Mt. Logan plant

    • Mt. Logan plant

    • View of a shale oil extraction facility in Garfield County, Colorado; sheds, machinery, barrels, hoists, and cable guides are on a steep slope. Roan Cliff formations are in the background.

    • Oil-shale industry--Colorado--Garfield County--1890-1910.; Garfield County (Colo.)--1890-1910.; Industrial facilities--Colorado--Garfield County--1890-1910.; Petroleum industry--Colorado--Garfield County--1890-1910.

    • [between 1890 and 1910?]
    • Machine and man

    • Machine and man

    • A man works on a shale oil retort with pulleys, tanks, pipes, and a drive belt, in (probably) Colorado; a brick building and corrugated shed are in the background.

    • Oil-shale industry--Colorado--1910-1920.; Machinery--Colorado--1910-1920.

    • [between 1910 and 1920?]
    • Shale oil refinery

    • Shale oil refinery

    • View of a shale oil retort with pulleys, tanks, pipes, and a drive belt, in (probably) Colorado; a brick building and corrugated shed are in the background.

    • Oil-shale industry--Colorado--1910-1920.; Machinery--Colorado--1910-1920.; Petroleum industry--Colorado--1910-1920.

    • [between 1910 and 1920?]
    • Oil shale refinery

    • Oil shale refinery

    • Men examine a retort at an oil shale processing facility at the Index Shale Oil Company in De Beque (Mesa County) Colorado; also shows machinery, pipes, and sheds.

    • Index Oil Shale Company--1920-1930.; Oil-shale industry--Colorado--De Beque--1920-1930.; De Beque (Colo.)--1920-1930.; Industrial facilities--Colorado--De Beque--1920-1930.; Petroleum industry--Colorado--De Beque--1920-1930.

    • 1922 March 24
    • Main portion of plan of Index Shale Oil Co, De Beque, Colo.

    • Main portion of plan of Index Shale Oil Co, De Beque, Colo.

    • View of oil shale processing facilities at the Index Shale Oil Company in De Beque (Mesa County) Colorado; shows storage bins, crusher house, and smokestacks.

    • Index Oil Shale Company--1920-1930.; Oil-shale industry--Colorado--De Beque--1920-1930.; De Beque (Colo.)--1920-1930.; Industrial facilities--Colorado--De Beque--1920-1930.; Petroleum industry--Colorado--De Beque--1920-1930.

    • [between 1920 and 1930?]
    • Where the spent shale is discharged

    • Where the spent shale is discharged

    • A man stands near the oil shale processing facility at the Index Shale Oil Company in De Beque (Mesa County) Colorado, Shows a Brown retort, a conveyor belt elevator for tailings, exhaust stacks, and sheds. The Roan Cliffs are in the distance.

    • Index Oil Shale Company--1920-1930.; Oil-shale industry--Colorado--De Beque--1920-1930.; De Beque (Colo.)--1920-1930.; Conveying systems--Colorado--De Beque--1920-1930.; Industrial facilities--Colorado--De Beque--1920-1930.; Petroleum...

    • 1922
    • Blackhawk

    • Blackhawk

    • Interior view of the Fifty Gold Mines Corporation assay laboratory, in Blackhawk, Gilpin County, Colorado; shows a man with water hoses and a brick retort furnace; tongs and crucibles are on a table. The bucket is for collecting mercury used in the...

    • Fifty Gold Mines Corporation--1900-1910.; Assaying--Colorado--Blackhawk--1900-1910.; Blackhawk (Colo.)--1900-1910.; Furnaces--Colorado--Blackhawk--1900-1910.; Gold--Colorado--Blackhawk--1900-1910.; Mining--Colorado--Blackhawk--1900-1910.

    • [between 1906 and 1910?]
    • Old Time Assayers Office, Cripple Creek, Colo

    • Old Time Assayers Office, Cripple Creek, Colo

    • Interior view of a mine assay laboratory in Cripple Creek, Colorado; shows a brick retort furnace, washtubs, buckets, a shovel, pulleys and drive belts.

    • Assaying--Colorado--Cripple Creek--1880-1900.; Cripple Creek (Colo.--1880-1900.; Gold--Colorado--Cripple Creek--1880-1900.; Laboratories--Colorado--Cripple Creek--1880-1900.; Mining--Colorado--Cripple Creek--1880-1900.

    • [between 1880 and 1900?]
    • Scales

    • Scales

    • Balance scales and weight sets are in glass cases at the University of Colorado at Boulder. A tall glass retort is in the background, against the interior wall. A box below the bench bears the image of a woman.

    • Boulder (Colo.)--1880-1890.; Classrooms--Colorado--Boulder--1880-1890.; Interiors.; Universities & colleges--Colorado--Boulder--1880-1890.; University of Colorado (Boulder Campus)

    • 1889
    • Denver High School: East Side Annual 1913

    • Denver High School: East Side Annual 1913

    • 1913 Yearbook from East Denver High School.

    • East High School (Denver, Colo.)--Students--Yearbooks.; Denver Public Schools--Students--Yearbooks.; School yearbooks--Colorado--Denver.

    • 1913

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