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Early logging flumes were square wooden chutes known as box flumes. These were prone to jams that could cause damage and required constant maintenance. They were also costly to build. A square box carries much more water compared to a V-shaped flume. The greater weight of the water required a sturdier structure, especially heavier trestles.
The Powder River Basin is the largest coal mining region in the US, but most of the coal is buried too deeply to be economically accessible. [4] The Powder River Basin coal beds are shaped like elongated bowls and as mines expand from east to west in the Powder River Basin, they will be going "down the sides of the bowl".
The Black Thunder Coal Mine is a surface coal mine in the U.S. state of Wyoming, located in the Powder River Basin which contains one of the largest deposits of coal in the world. In 2022, the mine produced 62,180,000 short tons (56,410,000 t) of coal, [ 1 ] over 25% of Wyoming's total coal production.
The Rawhide Mine is a coal mine located 10 miles (16.1 km) north of Gillette, Wyoming in the United States in the coal-rich Powder River Basin.The mine is an open pit mine that utilizes a combination of cast blast/dozer push and truck/shovel mining methods to strip an average of 165 feet (50.3m) of overburden off of approximately 105 (32.0m) feet of coal.
The cable style chute was used at eight of the fourteen landings along the coast. Two apron-style chutes were located at Bixby Landing and Coal Chute Point. As late as 1910, the winding, narrow coast road was still very rough and ended at the Pfeiffer Resort on the Big Sur River .
Powder River Crossing was a civilian settlement that grew up on the Bozeman Trail, across the Powder River from Cantonment Reno.Cantonment Reno was established in late 1876, three miles upstream from the site of Fort Reno, a fort that was established in 1865 and abandoned in 1868 under the terms of the Fort Laramie Treaty of 1868.
The Hanging Flume was an open water chute (known as a flume) built over the Dolores River Canyon in Colorado. The Montrose Placer Mining Company built the flume in the 1880s to facilitate gold mining. Some sections of the flume remain attached to the canyon wall, although much of the wood has vanished. [2]
The Cordero Rojo Mine is a coal mining complex located in the state of Wyoming in the United States, in the coal-rich Powder River Basin.The mine is of open pit construction and employs several dragline excavators.
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