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Visual Materials

Mine or tunnel portal

Description: Mine or tunnel portal
Type: Visual Materials(Opens in new tab)
Date: undated
Call number: photCL SCE 07 - 02577
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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Looking toward tunnel portal from top of main dam
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Looking toward tunnel portal from top of main dam.
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Company Officials at Tunnel portal
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Company Officials at Tunnel portal, Camp 60. [with sign showing "Worlds Record Camp" (174' in one week, 692' in one month).]
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Big Creek - Mammoth Pool - Outlet portal of power tunnel from inside the tunnel
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The portal of Tunnel #1 at Santa Ana River #1
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The portal of Tunnel #1 at Santa Ana River #1.
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Big Creek - Mammoth Pool - Grouting diversion tunnel portal
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Big Creek - Mammoth Pool - Grouting diversion tunnel portal.
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