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  • All fields: Boulder County (Colo.)--1940-1950.
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    • 4th of July mine

    • A dilapidated log cabin, associated with the Fourth of July mine in Boulder County, Colorado, stands amid pine trees and rocky hills.
    • Boulder County (Colo.)--1940-1950.; Building deterioration--Colorado--Boulder County--1940- 1950.; Log cabins--Colorado--Boulder County--1940-1950.
    • 1944
    • 4th of July mine

    • A group of dilapidated buildings represent the remains of the Fourth of July mine in Boulder County, Colorado. Piles of mine tailings, pine trees and rocky hills surround the area.
    • Boulder County (Colo.)--1940-1950.; Building deterioration--Colorado--Boulder County--1940- 1950.
    • 1944
    • 4th of July mine

    • A group of dilapidated buildings represent the remains of the Fourth of July mine in Boulder County, Colorado. A person is walking in the area and is looking at the mountains in the distance.
    • Boulder County (Colo.)--1940-1950.; Building deterioration--Colorado--Boulder County--1940- 1950.
    • 1944
    • 4th of July mine

    • A group of dilapidated buildings represent the remains of the Fourth of July mine in Boulder County, Colorado. Piles of mine tailings, pine trees and rocky hills surround the area.
    • Boulder County (Colo.)--1940-1950.; Mining--Colorado--Boulder County--1940-1950.; Tailings (Metallurgy)--Colorado--Boulder County--1940- 1950.
    • 1944
    • 4th of July mine boiler

    • The interior of the shafthouse of the Fourth of July mine in Boulder County, Colorado has a large boiler surrounded by bricks that have fallen into rubble. Roof beams are scattered across the floor, and sun is shining through both a broken window...
    • Boulder County (Colo.)--1940-1950.; Interiors.; Mining--Colorado--Boulder County--1940-1950.
    • 1944
    • 4th of July mine collapsed cabin

    • The roof of a log cabin near the Fourth of July mine in Boulder County, Colorado has collapsed, and fills the interior of the cabin.
    • Boulder County (Colo.)--1940-1950.; Building deterioration--Colorado--Boulder County--1940- 1950.
    • 1944
    • 4th of July mine shafthouse

    • A dilapidated building near the top of the Continental Divide represents the remains of the shafthouse of the Fourth of July mine in Boulder County, Colorado. The roof is bowed and on the verge of collapse.
    • Boulder County (Colo.)--1940-1950.; Building deterioration--Colorado--Boulder County--1940- 1950.
    • 1944
    • 4th of July mine shafthouse

    • The interior of the shaft house of the Fourth of July mine in Boulder County, Colorado reveals a boiler in one corner; illuminated by sunshine coming through a hole in the roof.
    • Boulder County (Colo.)--1940-1950.; Interiors.
    • 1944
    • 4th of July mine shafthouse

    • A dilapidated building near the top of the Continental Divide represents the remains of the shafthouse of the Fourth of July mine in Boulder County, Colorado. It is surrounded by a pile of mine tailings.
    • Boulder County (Colo.)--1940-1950.; Mining--Colorado--Boulder County--1940-1950.
    • 1944
    • 4th of July mine shafthouse

    • A dilapidated building near the top of the Continental Divide represents the remains of the shafthouse of the Fourth of July mine in Boulder County, Colorado. It is surrounded by a pile of mine tailings.
    • Boulder County (Colo.)--1940-1950.
    • 1944
    • 4th of July mine shafthouse

    • The interior of the shafthouse of the Fourth of July mine in Boulder County, Colorado has machinery and machine parts strewn around. The room is illuminated by sunshine coming through holes in the roof.
    • Boulder County (Colo.)--1940-1950.; Interiors.; Mining--Colorado--Boulder County--1940-1950.
    • 1944
    • 4th of July mine shafthouse

    • A dilapidated building near the top of the Continental Divide represents the remains of the shafthouse of the Fourth of July mine in Boulder County, Colorado. The roof is bowed and on the verge of collapse.
    • Boulder County (Colo.)--1940-1950.; Building deterioration--Colorado--Boulder County--1940- 1950.
    • 1944
    • Adair Cabin, West of Eldora

    • A log cabin stands in the right foreground west of Eldora in Boulder County, Colorado. Patches of snow cover the ground near the cabin and on the ridge of mountains in the background. Tall pine trees stand behind the cabin.
    • Boulder County (Colo.)--1940-1950.; Eldora (Colo.)--1940-1950.; Log cabins--Colorado--Eldora--1940-1950.
    • [1946 or 1948?]
    • Adair's Cabin July 1948

    • A log cabin stands in the right foreground west of Eldora in Boulder County, Colorado. Patches of snow cover the ground near the cabin and on the ridge of mountains in the background. Tall pine trees stand behind the cabin.
    • Boulder County (Colo.)--1940-1950.; Eldora (Colo.)--1940-1950.; Log cabins--Colorado--Eldora--1940-1950.; Pines--Colorado--Eldora--1940-1950.; Summer--Colorado--Eldora--1940-1950.
    • [1946 or 1948?]
    • Albion, Colo. 1946

    • A log cabin stands in the right foreground in Albion, a mining district in Boulder County, Colorado. Additional log cabins stand along a dirt road in the background at the base of a rocky mountain covered with patches of snow. The cabins are...
    • Mining districts--Colorado--Boulder County--1940-1950.; Boulder County (Colo.)--1940-1950.; Abandoned buildings--Colorado--Boulder County--1940-1950.; Log cabins--Colorado--Boulder County--1940-1950.
    • [1946?]
    • Albion, Colo. Boulder County 1946

    • The remains of several log buildings stand in the background near a ridge of mountains in Albion, a small mining district north of Silver Lake in Boulder County, Colorado. Rocks stand at the side of a dirt road that cuts through the foreground....
    • Mining districts--Colorado--Albion--1940-1950.; Mountain roads--Colorado--Albion--1940-1950.; Albion (Colo.)--1940-1950.; Boulder County (Colo.)--1940-1950.; Ruins--Colorado--Albion--1940-1950.
    • [1946?]
    • Albion, June 1946

    • A log cabin stands in the right foreground in Albion, a mining district in Boulder County, Colorado. Additional log cabins stand along a dirt road in the background at the base of a rocky mountain covered with patches of snow. The cabins are...
    • Boulder County (Colo.)--1940-1950.; Abandoned buildings--Colorado--Boulder County--1940-1950.; Log cabins--Colorado--Boulder County--1940-1950.; Mining--Colorado--Boulder County--1940-1950.
    • [1946?]
    • Arapahoe Peak 1941

    • Trees with bare branches stand on the ridge in the foreground looking toward Arapaho Peak in the distance on the border of Grand and Boulder counties in Colorado. Patches of snow remain on the distant ridge. Pine trees stand on the ridge in the...
    • Boulder County (Colo.)--1940-1950.; Grand County (Colo.)--1940-1950.; Mountains--Colorado--1940-1950.; Pines--Colorado--1940-1950.; Tree limbs--1940-1950.
    • [1941?]
    • Arapahoe Peak 1941

    • Tall pine trees stand in the foreground in this view looking toward Arapaho Peak in the distance on the border of Grand and Boulder counties in Colorado. A few tree stumps stand among the trees. Large, billowing clouds line the sky.
    • Boulder County (Colo.)--1940-1950.; Grand County (Colo.)--1940-1950.; Clouds--1940-1950.; Mountains--Colorado--1940-1950.; Pines--Colorado--1940-1950.; Tree stumps--Colorado--1940-1950.
    • [1941?]
    • Arapahoe Peak 1941

    • Patches of snow remain on Arapaho Peak during the summer in this distant view from the head of Gamble Gulch in Gilpin County, Colorado. Arapaho Peak is on the border of Boulder and Grand Counties. Cumulus and cirrus clouds fill the sky.
    • Boulder County (Colo.)--1940-1950.; Gilpin County (Colo.)--1940-1950.; Grand County (Colo.)--1940-1950.; Canyons--Colorado--Gilpin County--1940-1950.; Mountains--Colorado--1940-1950.; Summer--Colorado--1940-1950.
    • [1941?]
    • Arapahoe Peak 1945

    • Large rocks stand along the side of a dirt road leading back toward Arapaho Peak in the distance on the border of Grand and Boulder counties in Colorado. Tall pine trees stand in the midground.
    • Mountain roads--Colorado--1940-1950.; Boulder County (Colo.)--1940-1950.; Grand County (Colo.)--1940-1950.; Mountains--Colorado--1940-1950.; Pines--Colorado--1940-1950.; Rocks--Colorado--1940-1950.
    • [1945?]
    • Big 5 group mill

    • The mill used by the Big 5 company in the late 1890s stands in Camp Francis (Boulder County), Colorado. It is darkly colored and has a black smokestack abutting one of the walls. Access to the second floor is gained by an outdoor staircase. Other...
    • Boulder County (Colo.)--1940-1950.; Mills--Colorado--Boulder County--1940-1950.
    • 1946
    • Bluebell Canyon 1943

    • A dirt trail leads from the foreground back toward The Flatirons on Green Mountain west of Boulder in Boulder County, Colorado. Tall trees stand on the ridge of the hill above the trail.
    • Boulder (Colo.)--1940-1950.; Boulder County (Colo.)--1940-1950.; Canyons--Colorado--1940-1950.; Mountains--Colorado--1940-1950.; Rock formations--Colorado--Boulder--1940-1950.; Trails & paths--Colorado--Boulder--1940-1950.
    • [1943?]
    • Bluebell Canyon 1943

    • A group of cabins and houses stands on a ridge in the midground at the base of Green Mountain in Boulder County, Colorado. The famous Flatirons, jagged rock formations west of Boulder, stand on the mountain ridge. The branches of a large pine tree...
    • Boulder (Colo.)--1940-1950.; Boulder County (Colo.)--1940-1950.; Cabins--Colorado--Boulder--1940-1950.; Houses--Colorado--Boulder--1940-1950.; Mountains--Colorado--1940-1950.; Rock formations--Colorado--Boulder--1940-1950.
    • [1943?]
    • Bluebell Canyon 1943

    • Large pine trees stand in a clearing near the base of Green Mountain in Boulder County, Colorado. The famous Flatirons, jagged rock formations, stand on the top ridge of the mountain.
    • Boulder (Colo.)--1940-1950.; Boulder County (Colo.)--1940-1950.; Canyons--Colorado--Boulder--1940-1950.; Mountains--Colorado--1940-1950.; Pines--Colorado--Boulder--1940-1950.; Rock formations--Colorado--Boulder--1940-1950.
    • [1943?]
    • Bluebell Canyon 1943

    • A dirt trail leads from the foreground back toward The Flatirons on Green Mountain west of Boulder in Boulder County, Colorado. Tall trees stand on the ridge of the hill above the trail.
    • Boulder (Colo.)--1940-1950.; Boulder County (Colo.)--1940-1950.; Canyons--Colorado--Boulder--1940-1950.; Mountains--Colorado--1940-1950.; Rock formations--Colorado--Boulder--1940-1950.; Trails & paths--Colorado--Boulder--1940-1950.
    • [1943?]
    • Boulder County Mine

    • Two sets of ore carts sit at the confluence of two sets of tracks that served the Boulder County mine near New Cardinal, Colorado.
    • Boulder County (Colo.)--1940-1950.; Mine railroads--Colorado--Boulder County--1940-1950.
    • 1942
    • Boulder County Mine near (New) Cardinal

    • Residences and storage buildings for men and equipment of the Boulder County mine are still in use in 1942, near New Cardinal, Colorado.
    • Boulder County (Colo.)--1940-1950.; Storage facilities--Colorado--Boulder County--1940-1950.
    • 1942
    • Boulder, Colo. Flatirons 1943

    • Large pine trees stand in a grassy clearing at the base of Green Mountain west of Boulder in Boulder County, Colorado. The famous Flatirons, jagged rock formations, stand on the ridge of Green Mountain.
    • Boulder (Colo.)--1940-1950.; Boulder County (Colo.)--1940-1950.; Meadows--Colorado--1940-1950.; Mountains--Colorado--1940-1950.; Pines--Colorado--Boulder--1940-1950.; Rock formations--Colorado--Boulder--1940-1950.
    • [1943?]
    • Boulder, Colo. Flatirons 1943

    • Large pine trees stand in a grassy clearing at the base of Green Mountain west of Boulder in Boulder County, Colorado. The famous Flatirons, jagged rock formations, stand on the ridge of Green Mountain.
    • Boulder (Colo.)--1940-1950.; Boulder County (Colo.)--1940-1950.; Meadows--Colorado--1940-1950.; Mountains--Colorado--1940-1950.; Pines--Colorado--Boulder--1940-1950.; Rock formations--Colorado--Boulder--1940-1950.
    • [1943?]
    • Boulder, Colo. Flatirons 1943

    • Tall pine trees stand in a clearing below The Flatirons on Green Mountain west of Boulder in Boulder County, Colorado.
    • Boulder (Colo.)--1940-1950.; Boulder County (Colo.)--1940-1950.; Mountains--Colorado--1940-1950.; Pines--Colorado--Boulder--1940-1950.; Rock formations--Colorado--Boulder--1940-1950.
    • [1943?]
    • Boulder, Colo. Flatirons 1943

    • Large boulders, shrubs and a pine tree stand in the foreground of this view looking toward The Flatirons on Green Mountain west of Boulder in Boulder County, Colorado. A cabin is on a small hill in the far right midground.
    • Boulder (Colo.)--1940-1950.; Boulder County (Colo.)--1940-1950.; Boulders--Colorado--1940-1950.; Cabins--Colorado--Boulder--1940-1950.; Mountains--Colorado--1940-1950.; Rock formations--Colorado--1940-1950.
    • [1943?]
    • Boulder, Colo. Flatirons 1943

    • Tall pine trees stand in a clearing below The Flatirons on Green Mountain west of Boulder in Boulder County, Colorado.
    • Boulder (Colo.)--1940-1950.; Boulder County (Colo.)--1940-1950.; Mountains--Colorado--1940-1950.; Pines--Colorado--Boulder--1940-1950.; Rock formations--Colorado--Boulder--1940-1950.
    • [1943?]
    • Boulder, Colo. Flatirons 1943

    • Large pine trees stand in a grassy clearing at the base of Green Mountain west of Boulder in Boulder County, Colorado. The famous Flatirons, jagged rock formations, stand on the ridge of Green Mountain.
    • Boulder (Colo.)--1940-1950.; Boulder County (Colo.)--1940-1950.; Meadows--Colorado--1940-1950.; Mountains--Colorado--1940-1950.; Pines--Colorado--Boulder--1940-1950.; Rock formations--Colorado--Boulder--1940-1950.
    • [1943?]
    • Boulder, Colo. Flatirons 1943

    • Tall pine trees stand in a clearing below The Flatirons on Green Mountain west of Boulder in Boulder County, Colorado.
    • Boulder (Colo.)--1940-1950.; Boulder County (Colo.)--1940-1950.; Mountains--Colorado--1940-1950.; Pines--Colorado--Boulder--1940-1950.; Rock formations--Colorado--Boulder--1940-1950.
    • [1943?]
    • Broom polo, Van Vleet Arabian Ranch Joe Dekker, Gravey Graves, Bob MacDonald, Hank Hankins.

    • Members of the Roundup Riders of the Rockies play broom polo at the L.W. Van Vleet Lazy V V Ranch near Nederland in Boulder County, Colorado. Players include Joe Dekker, Claude "Gravey" Graves, Bob MacDonald, and Harlan "Hank" Hankins. The men ride...
    • Lazy V V Ranch (Colo.)--1940-1950.; Roundup Riders of the Rockies (Colo.)--People--1940-1950.; Trail riding--Colorado--1940-1950.; Boulder County (Colo.)--1940-1950.; Organizations--Colorado--1940-1950.; Polo--Colorado--Boulder County--1940-1950.;...
    • 1949 July
    • Camp Francis Big 5 mill

    • The mill used by the Big 5 Company in the late 1890s stands in Camp Francis (Boulder County), Colorado. It is darkly colored and has many broken windows on the facing facade.
    • Boulder County (Colo.)--1940-1950.; Mills--Colorado--Summit County--1940-1950.
    • 1946
    • Caribou Flats 1943

    • A large rock formation stands in the right foreground in this view of Caribou Flats in Boulder County, Colorado. The area is filled with tree stumps. Pine trees stand in the background. A ridge of mountains is in the distance.
    • Boulder County (Colo.)--1940-1950.; Rock formations--Colorado--Boulder County--1940-1950.; Tree stumps--Colorado--Boulder County--1940-1950.
    • [1943?]
    • Caribou Flats 1945

    • Two large trees stand among a field of smaller pine trees near Caribou Flat in Boulder County, Colorado. A few tree stumps are also in the field. A ridge of mountains is in the distance.
    • Boulder County (Colo.)--1940-1950.; Pines--Colorado--Boulder County--1940-1950.; Tree stumps--Colorado--Boulder County--1940-1950.
    • [1945?]
    • Caribou Flats 1945

    • A group of tree stumps stands in the foreground among rocks at Caribou Flat in Boulder County, Colorado. A group of pine trees stands in the background, and a ridge of mountains is in the distance.
    • Boulder County (Colo.)--1940-1950.; Pines--Colorado--Boulder County--1940-1950.; Tree stumps--Colorado--Boulder County--1940-1950.
    • [1945?]
    • Caribou Flats 1945

    • Several cabins stand along a ridge in the background near Caribou Flat in Boulder County, Colorado. A large building, possibly a mine shafthouse or mill, stands among the pine trees in the midground. A ridge of mountains is in the distance.
    • Mine buildings--Colorado--Boulder County--1940-1950.; Boulder County (Colo.)--1940-1950.; Cabins--Colorado--Boulder County--1940-1950.
    • [1945?]
    • Caribou Flats 1945

    • A trail of snowshoe tracks is in the foreground near a tall pine tree in Caribou Flat in Boulder County, Colorado. Several tree stumps and additional small pine trees are in the midground. A mountain ridge is in the background.
    • Boulder County (Colo.)--1940-1950.; Pines--Colorado--Boulder County--1940-1950.; Snowshoeing--Colorado--Boulder County--1940-1950.
    • [1945?]
    • Caribou Flats, 1945

    • A large tree stands in the foreground in Caribou Flat in Boulder County, Colorado. Small trees and several tree stumps stand in the field in the midground. A ridge of mountains is in the distance.
    • Boulder County (Colo.)--1940-1950.; Tree stumps--Colorado--Boulder County--1940-1950.; Trees--Colorado--Boulder County--1940-1950.
    • [1945?]
    • Caribou Flats, Winter 1945

    • Small shrubs stand in a large, snow-covered field near Caribou Flat in Boulder County, Colorado. A taller tree is in the foreground. A ridge of mountains is in the distance.
    • Boulder County (Colo.)--1940-1950.; Caribou (Colo.)--1940-1950.; Shrubs--Colorado--Caribou--1940-1950.
    • [1945?]
    • Caribou, Colo. early mine machinery 1941

    • View of abandoned sheds, tailings piles, and mine shafthouses near Caribou, Boulder County, Colorado. Fragmented cumulus clouds fill the sky.
    • Mine buildings--Colorado--Caribou--1940-1950.; Boulder County (Colo.)--1940-1950.; Caribou (Colo.)--1940-1950.; Mining--Colorado--Caribou--1940-1950.
    • [1941?]
    • Caribou, Colo. early mine machinery 1941

    • A long, covered, wooden platform is supported by wood frames along a steep hill near Caribou, a mining district in Boulder County, Colorado. The platform possibly houses a tramway used to haul ore from a mine near the top of the hill. Tramways were...
    • Boulder County (Colo.)--1940-1950.; Caribou (Colo.)--1940-1950.; Ores--Transportation--Colorado--Caribou--1940-1950.
    • [1941?]
    • Caribou, Colo. early mine machinery 1941

    • A wooden drum from a "slack-belt" hoist (widely used in Caribou mines during the early mining days) and a boiler that supplied steam to activate the hoist and pumps, stand in the foreground on a hill near Caribou in Boulder County, Colorado. Pine...
    • Mining equipment--1940-1950.; Boulder County (Colo.)--1940-1950.; Caribou (Colo.)--1940-1950.; Boilers--1940-1950.; Hoisting machinery--1940-1950.
    • [1941?]
    • Caribou, Colo. early mine machinery 1941

    • A wooden drive wheel from an early mine stands in the foreground on a ridge near Caribou in Boulder County, Colorado. A partially-shown person carrying a camera tripod walks in the left background. A tall tree is in the right background.
    • Mining equipment--1940-1950.; Boulder County (Colo.)--1940-1950.; Caribou (Colo.)--1940-1950.
    • [1941?]
    • Creek near Hornbacks 1941

    • Snow covers the banks of a creek near Eldora in Boulder County, Colorado. Snow-covered pine trees stand on both sides of the creek. A telegraph or telephone pole is in the right foreground leaning toward the creek.
    • Boulder County (Colo.)--1940-1950.; Eldora (Colo.)--1940-1950.; Snow--Colorado--Eldora--1940-1950.; Streams--Colorado--Eldora--1940-1950.
    • [1941?]
    • Doc Lucius Faires, Doc Howard Lamb

    • Lucius B. Faires and Howard Lamb, members of the Roundup Riders of the Rockies, pose on horseback near a log fence at probably the L.W. Van Vleet Lazy V V Ranch near Nederland in Boulder County, Colorado. Faires wears western attire; his saddle has...
    • Roundup Riders of the Rockies (Colo.)--People--1940-1950.; Trail riding--Colorado--1940-1950.; Boulder County (Colo.)--1940-1950.; Organizations--Colorado--1940-1950.; Faires, Lucius B.; Lamb, Howard E., osteopathic surgeon.
    • 1949 July

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