Core drilling setup on D7 and D8

Description: Core drilling setup on D7 and D8 - Dam 1.
Type: Visual Materials(Opens in new tab)
Date: May 1937
Call number: photCL SCE 02 - 20149
Find out more: View in the Huntington Digital Library(Opens in new tab); View in the Library catalog(Opens in new tab)

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Core drilling machine setup
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Core drilling machine setup on D-1 Dam 1. Taken from above and left of machine.
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Core drilling machine setup
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Core machine setup on hole D-13 Dam #1.
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Core drilling machine setup
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Core machine setup hole d-1 Dam #1.
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Machine set up for drilling core hole
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Machine set up for drilling core hole d-1 downstream face Dam 1, station 9+78.5, elevation 6812.4.
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Showing upstream core drill hole 2-1, Dam 2, and drilling scaffold on hole 2-2
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Showing upstream core drill hole 2-1, Dam 2, and drilling scaffold on hole 2-2.
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Core drill hole
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Core drill hole U-13 Upstream face Dam 1 approx. 108 to West of West end of gunnited seam.
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