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Title
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Project RS 0172(9), Ignacio-north, La Plata County, administrative action, environmental assessment
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Date
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1980
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dc.title
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Project RS 0172(9), Ignacio-north, La Plata County, administrative action, environmental assessment, Ignacio north environmental assessment, project RS 0172(9), Ignancio north environmental assessment, project RS 0172(9), Project RS 0172(9), Ignacio-north, La Plata County, administrative action, environmental assessment (Online)
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Title
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Mastering a mountain
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Abstract
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Shows the mining techniques used to build the east tunnel of the Eisenhower Memorial Tunnel.
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Date
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1980