Photograph showing the Hanging Flume, which was located along the Dolores River near its confluence with the San Miguel River. In 1887 the Montrose Placer Mining Company purchased the Lone Tree Placer deposits along Mesa Creek. However, Mesa Creek did not provide enough water for the placer mining operations so the Company started construction on a seven mile ditch and a six mile flume to bring water to the placer from the Dolores River. The Hanging Flume was built on the canyon wall 300 to 400 feet above the Dolores River, and it was supported by sills fastened to the cliff and posts or inclined timbers pinned to the cliff below. The flume was six feet wide and four feet high, and 1,800,000 feet of lumber were used in its construction. It was supposed to carry 80,000,000 gallons of water a day but was never completed.
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