Visual Materials
Big Creek #1
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Big Creek #1
Visual Materials
Big Creek #1 - Penstock #1, 4th Unit, [excavation at] lower portal of long tunnel.
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Big Creek #1 - Penstock #1, 4th Unit
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Big Creek #1 - Penstock #1, 4th Unit - open cut above long tunnel.
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Big Creek #1 - Site of Tunnel
Visual Materials
Big Creek #1 - Site of Tunnel - 4th Unit Penstock #1
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Big Creek #1 - Lower portal of upper tunnel, Penstock 4th Unit
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Big Creek #1 - Lower portal of upper tunnel, Penstock 4th Unit - Powerhouse #1.
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Big Creek #1 - Upper Portal of lower tunnel, Penstock 4th Unit
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Big Creek #1 - Upper Portal of lower tunnel, Penstock 4th Unit - Powerhouse #1.
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Big Creek #1 - Upper Portal of lower tunnel, Penstock 4th Unit
Visual Materials
Big Creek #1 - Upper Portal of lower tunnel, Penstock 4th Unit - Powerhouse #1.
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