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Dames & Moore, 1999 - USDA Forest Service

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SOURCES: SRK<br />

H Flushing Reduced<br />

Some Variable Air Movement<br />

Northwest Geophysical Associates, 1997, Seismic Line A-A', 8-6'. Holden Mine<br />

Geophysical Investigation.<br />

Youngberg, E. A., Wilson, T. L., 1952, The Geology of the Holden Mine, Economic<br />

Geology, V. 47, No. 1, 1952, pp. 1-12.<br />

W.A.B., 1942, Detailed Surface Geology Map, Howe Sound Co., Chelan Division<br />

F.E., H.B.S., 1938, Geology of 1500 Level, Howe Sound Company Chelan Division<br />

DAMES & MOORE<br />

LEGEND<br />

. . . . . . . . . . . .<br />

..::.:.::. . ...... . . . . . :, , . >. . .,. .... , Open stope<br />

Badnilled stope .<br />

ra Dike<br />

-.-.-.- Transform fault<br />

---W Direction of water movement<br />

Direction of air movement<br />

Surface Water<br />

r Infilm<br />

Intersection with 1 a.<br />

NOTE:<br />

This cross section is generally parallel to ore<br />

body and 1500-level ventilator tunnel. Due to<br />

the 1500-level main tunnel having +1% grade,<br />

water flow is toward main portal opening but not<br />

shown on this figure. (See Figures 6.1 -2a and<br />

6.1 -2b)<br />

0 500 1,000<br />

Approximate<br />

Horizontal and Vertical<br />

Scale in Feet<br />

GENERAL WATER AND AIR FLOW FEATURES<br />

IN THE UNDERGROUND MINE-SUMMER<br />

A DAMES 6 W R E GROUP COMPANY Holden Mine RIIFS<br />

~ob No. 17693-005-01 9<br />

Draft Final RI Report

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