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  • All fields: erosion
(130 results)



Display: 50

    • Cherry Creek in Castlewood Canyon State Park

    • View of Cherry Creek as it spills over rock in Castlewood Canyon in Castlewood State Park, Douglas County, Colorado. Shows boulders, rock formations, pine trees, and erosion.
    • Castlewood Canyon (Colo.)--1970-1990.; Castlewood Canyon State Park (Colo.)--1970-1990.; Cherry Creek (El Paso County-Denver County, Colo.)--1970-1990.; Douglas County (Colo.)--1970-1990.; Canyons--Colorado--Douglas County--1970-1990.;...
    • [between 1975 and 1981?]
    • Officer's Bar & Gray Back iron mines Placer, Colo

    • View of Grayback Mining District, in Costilla County, Colorado; shows iron mines and lode veins (1), and Grayback Gulch placers (2). Hydraulic gold mine erosion is in the foreground.
    • Costilla County (Colo.)--1890-1900.; Erosion--Colorado--Costilla County--1890-1900.; Hydraulic mining--Colorado--Costilla County--1890-1900.; Mining--Colorado--Costilla County--1890-1900.
    • 1896
    • Placer mining Alma Colo

    • Gold miners pose at a hydraulic mine in Alma, Park County, Colorado; bluffs in the background have erosion and falling water. A jet of water issues from a "monitor" nozzle; a flume is in the foreground.
    • Alma (Colo.)--1880-1900.; Flumes--Colorado--Park County--1880-1900.; Gold mining--Colorado--Park County--1880-1900.; Hydraulic mining--Colorado--Park County--1880-1900.; Miners--Colorado--Park County--1880-1900.; Mining--Colorado--Park...
    • [between 1880 and 1900?]
    • Rock carved by drifting sand, near mouth of Grand Wash, Utah

    • Close up view of a rock marked with striations from wind (eolian) erosion near Grand Wash in Wayne County (later Capitol Reef National Park), Utah. Shows a glass bottle and probably a metal cup beside the rock for scale.
    • Grand Wash (Utah)--1870-1880.; Wayne County (Utah)--1870-1880.; Expeditions & surveys--Utah--Wayne County--1870-1880.; Rocks--Utah--Wayne County--1870-1880.; Geographical Surveys West of the 100th Meridian (U.S.)
    •  
    • Bridge in Silt

    • View of a concrete bridge pylon in Silt (Garfield County), Colorado; water and erosion are at the base.
    • Silt (Colo.)--1900-1910.; Deterioration--Colorado--Silt--1900-1910.; Pylons (Bridges)--Colorado--Silt--1900-1910.
    • [between 1900 and 1910?]
    • Crow Buttes - Nebraska

    • View of Crow Butte, in Dawes County, Nebraska; shows stone outcroppings with erosion.
    • Crow Butte (Neb.)--1870-1900.; Dawes County (Neb.)--1870-1900.; Buttes--Nebraska--1870-1900.; Rock formations--Nebraska--1870-1900.
    • [between 1870 and 1900?]
    • Bridge in Silt

    • View of a concrete bridge pylon in Silt (Garfield County), Colorado; water and erosion are at the base.
    • Silt (Colo.)--1900-1910.; Deterioration--Colorado--Silt--1900-1910.; Pylons (Bridges)--Colorado--Silt--1900-1910.
    • [between 1900 and 1910?]
    • Black Hawk, flooding

    • View is south on Main Street, Blackhawk, Colorado; shows flat railroad cars and a specially-built track to load out the debris washed down through town by heavy flooding. Flooding was common a occurrence as a result of extensive lumber harvests....
    • Blackhawk (Colo.)--1890-1900.; Floods--Colorado--Blackhawk--1890-1900.; Streets--Colorado--Blackhawk--1890-1900.
    • [1895?]
    • Chief Louison

    • Flathead Chief Louison, a judge on the Flathead Indian Reservation court, poses on the reservation in western Montana. He wears a tall feather headdress, and his hair is in long braids. He holds a pipe tomahawk in his left arm. Long ermine fur...
    • Salish Indians--1900-1910.; Flathead Indian Reservation (Mont.)--1900-1910.; Indians of North America--Clothing & dress--Montana--1900-1910.; Louison, Salish Chief.
    • [between 1905 and 1907?]
    • Chief Louison

    • Flathead Chief Louison, a judge on the Flathead Reservation Court, poses wearing a tall, feather headdress. His long hair is in braids. His buckskin shirt is adorned with beadwork and tassels of ermine fur. He holds a beaded pouch in his left hand....
    • Salish Indians--1900-1910.; Flathead Indian Reservation (Mont.)--1900-1910.; Indians of North America--Clothing & dress--Montana--1900- 1910.; Judges--Montana--1900-1910.
    • [between 1905 and 1907?]
    • Chief Louison

    • Flathead Chief Louison, a judge on the Flathead Indian Reservation court, poses on the reservation in western Montana. He wears a tall feather headdress, and his hair is in long braids. He holds a pipe tomahawk in his right hand. Long ermine fur...
    • Salish Indians--1900-1910.; Flathead Indian Reservation (Mont.)--1900-1910.; Indians of North America--Clothing & dress--Montana--1900- 1910.; Judges--Montana--1900-1910.
    • [between 1905 and 1907?]
    • Arkansas River 1965 flood of prison farm

    • This aerial view shows the Arkansas River near Canon City, Colorado, flooding the farm of the Colorado State Penitentiary. Past the sandbars and braiding, low sandstone bluffs have erosion with vertical ridging. Foothills are in the background.
    • Arkansas River--1960-1970.; Canon City (Colo.)--1960-1970.; Floods--Colorado--Canon City--1960-1970.
    • 1965
    • Denver and Rio Grande scenic points Dotsero cutoff survey

    • View of the Colorado River and hills with erosion, in Eagle County, Colorado.
    • Colorado River (Colo.-Mexico)--1930-1940.; Dotsero Cutoff (Colo.)--1930-1940.; Eagle County (Colo.)--1930-1940.; Rivers--Colorado--Eagle County--1930-1940.
    • 1932
    • Sun Temple, Mesa Verde

    • View of the Sun Temple in Mesa Verde National Park, Colorado. The excavation, by J. Walter Fewkes, shows two large kivas (known as "B" and "C") and smaller rooms ("e,f,g,h,i") with one rectangular shaped room (known as "r"). The top of the ruins...
    • Fewkes, Jesse Walter, 1850-1930--Homes & haunts.; Indians of North America--Antiquities & archaeological sites--Colorado--Mesa Verde National Park--1910-1920.; Pueblo Indians--Antiquities & archaeological sites--Colorado--Mesa Verde National...
    • [between 1915 and 1920]
    • Junction of Gray Back Placer & Middle Creek Placer Colo.

    • View of the Grayback Mining District, Costilla County, Colorado; shows meadows, forest, and hills. A covered wagon and a man on horseback are by the creek bottom; embankments in the background have erosion from hydraulic gold dredges.
    • Costilla County (Colo.)--1900-1910.; Covered wagons--Colorado--Costilla County--1900-1910.; Horseback riding--Colorado--Costilla County--1900-1910.; Hydraulic mining--Colorado--Costilla County--1900-1910.; Mining--Colorado--Costilla...
    • [between 1900 and 1910?]
    • Officers Bar - south end

    • View of Officer's Bar and the Grayback Mine District in Placer, Costilla County, Colorado; shows (1-1) Grayback Gulch, (2) Placer Creek, and (3) Grayback on iron cut. Embankments show erosion from hydraulic gold dredging.
    • Costilla County (Colo.)--1930-1940.; Grayback Gulch (Colo.)--1930-1940.; Placer Creek (Colo.)--1930-1940.; Hydraulic mining--Colorado--Costilla County--1930-1940.; Mining--Colorado--Costilla County--1930-1940.
    • 1932
    • Mount Logan

    • View of Mount Logan oil shale formations and Roan Cliffs in Garfield County, Colorado. Erosion cuts through rock strata.
    • Oil-shales--Colorado--Garfield County--1920-1930.; Logan, Mount (Garfield County, Colo.)--1920-1930.; Roan Cliffs (Utah and Colo.)--1920-1930.; Petroleum industry--Colorado--Garfield County--1920-1930.
    • [between 1920 and 1925?]
    • A closeup of hydraulic mining Alma Placer, Park County, Colo. on the South Fork of the South Platte

    • Gold miners pose under jets of water at a hydraulic mine in Park County, Colorado; bluffs in the background have erosion and waterfalls. A crane dangles a palette from a chain and pulley.
    • Park County (Colo.)--1880-1900.; Hydraulic mining--Colorado--Park County--1880-1900.; Miners--Colorado--Park County--1880-1900.; Mining equipment--Colorado--Park County--1880-1900.; Mining--Colorado--Park County--1880-1900.;...
    • [between 1880 and 1900?]
    • Placer mining at Alma Colo

    • Gold miners pose at a hydraulic mine in Alma, Park County, Colorado; bluffs in the background have erosion and falling water. Jets of water issue from "monitor" nozzles; a swivel crane is to the side.
    • Mining machinery--Colorado--Alma--1880-1900.; Alma (Colo.)--1880-1900.; Hydraulic mining--Colorado--Alma--1880-1900.; Miners--Colorado--Alma--1880-1900.; Mining--Colorado--Alma--1880-1900.
    • [between 1880 and 1900?]
    • Placer mining at Alma

    • Gold miners pose with a wheelbarrow at a hydraulic mine in Alma, Park County, Colorado; bluffs in the background have erosion and falling water. A jet of water issues from a "monitor" nozzle.
    • Alma (Colo.)--1880-1900.; Gold mining--Colorado--Alma--1880-1900.; Hydraulic mining--Colorado--Alma--1880-1900.; Miners--Colorado--Alma--1880-1900.; Mining--Colorado--Alma--1880-1900.
    • [between 1880 and 1900?]
    • Bryce Canyon

    • View, framed by three trees on the rim of a canyon, of sandstone formations created by erosion in Bryce Canyon National Park, Utah.
    • Bryce Canyon National Park (Utah)--1910-1930.; National parks & reserves--Utah--1910-1930.
    • [between 1910 and 1930]
    • Bryce Canyon

    • View of canyons and sandstone pillars created by erosion in Bryce Canyon National Park, Utah.
    • Bryce Canyon National Park (Utah)--1910-1930.; National parks & reserves--Utah--1910-1930.
    • [between 1910 and 1930]
    • Gate Rock

    • View of Gate Rock at the entrance of Garden of the Gods, Colorado Springs (El Paso County), Colorado. Shows a dirt road, soil erosion, brush and rock formations.
    • Colorado Springs (Colo.)--1890-1900.; Garden of the Gods (Colorado Springs, Colo.)--1890-1900.; Gate Rock (Colorado Springs, Colo.)--1890-1900.; Rock formations--Colorado--Colorado Springs--1890-1900.
    • 1896
    • Central City - Chain O' Mines dump

    • A large pile of mine tailings from the Chain O' Mines Mill is cross-hatched with wooden stakes to prevent erosion, near Central City, Gilpin County, Colorado.
    • Abandoned mines--Colorado--Gilpin County--1950-1960.; Gilpin County (Colo.)--1950-1960.; Mining--Colorado--Gilpin County--1950-1960.
    •  
    • Bryce Canyon, Utah

    • Erosion debris slopes steeply away from the vertical sandstone cliffs where it originated in Bryce Canyon National Park, Utah.
    • Bryce Canyon National Park (Utah)--1910-1930.; National parks & reserves--Utah--1910-1930.
    • [between 1910 and 1930]
    • Four Mile Canyon

    • A lattice of pine boughs and grasses lies on a pile of mine tailings in order to prevent its erosion. The pile is in Fourmile Canyon in Boulder County, Colorado.
    • Boulder County (Colo.)--1950-1960.; Tailings (Metallurgy)--Colorado--Boulder County--1950-1960.
    • 1958
    • Central City

    • A large pile of mine tailings has been shored up with rows of wooden stakes to prevent erosion of the pile into nearby waterways, Central City, Gilpin County, Colorado.
    • Gilpin County (Colo.)--1950-1960.; Mining--Colorado--Gilpin County--1950-1960.
    •  
    • Four Mile Canyon

    • A lattice of boughs and grasses lies on a pile of mine tailings in order to prevent its erosion. The pile is in Fourmile Canyon in Boulder County, Colorado.
    • Boulder County (Colo.)--1950-1960.; Tailings (Metallurgy)--Colorado--Boulder County--1950-1960.
    • 1958
    • Municipal Facts: Volume 6 Numbers 6 and 7, 1923 June-July

    • 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.
    • 19230600
    • Glenarm Recreation Center Historic Building Application

    • Application for National Register of Historic Places designation for the Glenarm Recreation Center (Denver, Colo.). Includes forms, narrative, maps and photographs.
    • Historic preservation--Colorado--Denver.; Historic buildings--Colorado--Denver.; Architecture--Colorado--Denver--History.; Recreation centers--Colorado--Denver.; Community centers--Colorado--Denver.
    • 1981
    • The Roaring Forks, Colo. Midland Ry

    • Close, side view of whitewater on the Roaring Fork River in the Roaring Fork Canyon between Glenwood Springs and Aspen, Colorado; water tumbles over boulders with driftwood caught on distant rocks; rocks in foreground have lichen and water erosion...
    • Roaring Fork River (Colo.)--1900-1920.; Rivers--Colorado--1900-1920.
    • [between 1900 and 1919]
    • Bryce Canyon - man on rim

    • A man stands on the rim at Inspiration Point, Bryce Canyon National Park, Utah; the Black Mountains in the background are lava covered portions of the Paunsaugunt Plateau. Bryce Ampitheater, shows the phases of erosion.
    • Bryce Canyon National Park (Utah)--1910-1930.; National parks & reserves--Utah--1910-1930.
    • [between 1910 and 1930]
    • Bryce Canyon

    • Erosion debris slopes steeply away from the vertical sandstone cliffs where it originated in Bryce Canyon National Park, Utah.
    • Bryce Canyon National Park (Utah)--1910-1930.; National parks & reserves--Utah--1910-1930.
    • [between 1910 and 1930]
    • Central City, Colorado

    • View looking down on Spring Street, which is just outside Central City, Colorado. A pile of mine tailings is in the lower front corner. Below in the gulch are several buildings. One has a roof with undistinguishable writing on the front. The...
    • Central City (Colo.)--1950-1960.; Streets--Colorado--Central City--1950-1960.
    • 1953
    • Bryce Canyon

    • View looking down on spires of sandstone, created by erosion, in Bryce Canyon National Park, Utah.
    • Bryce Canyon National Park (Utah)--1910-1930.; National parks & reserves--Utah--1910-1930.
    • [between 1910 and 1930]
    • Planting the Cherry Creek forest belt near Logan Ave bridge

    • View of flood control walls, landscaping, and Cherry Creek in Denver, Colorado; houses and apartment buildings are in the background.
    • Cherry Creek (El Paso County-Denver County, Colo.)--1910-1920.; Denver (Colo.)--1910-1920.; Erosion protection works--Colorado--Denver--1910-1920.; Retaining walls--Colorado--Denver--1910-1920.; Streams--Colorado--Denver--1910-1920.;...
    • 1918 August

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