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1987-12-01_PERMIT FILE - C1981017 (191)
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1987-12-01_PERMIT FILE - C1981017 (191)
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Entry Properties
Last modified
1/4/2021 2:55:21 AM
Creation date
5/24/2012 2:18:53 PM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
C1981017
IBM Index Class Name
PERMIT FILE
Doc Date
12/1/1987
Doc Name
Subsidence Inspection Report
Section_Exhibit Name
Chapter IV Appendix IV-F-1
Media Type
D
Archive
No
Tags
DRMS Re-OCR
Description:
Signifies Re-OCR Process Performed
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The faces of the slope and ridges show alternating strata <br /> consisting of shale and sandstone. The strata dip into the <br /> mountain at about 10 degrees and this attitude appears to <br /> partially counteract the weathering effects upon outcrop <br /> slump. The shale outcrops lie nearly at the angle of repose <br /> (370) of weathered shale upon the slopes , with some flattening <br /> at the ridges where they are protected by sandstone ledges. <br /> The sandstone tends to form vertical faces which result <br /> in broken, cracked ledges, some of which are too steep and <br /> high for non-technical climbing. The ratio of total shale <br /> thickness to sandstone thickness is estimated to be 1. 5 to <br /> 1. 0. The slope face has been subject to regular avalanching <br /> which has resulted in reduction of soil, talus and vegeta- <br /> tion. Therefore surface conditions are not greatly obscured <br /> by residual detritus. <br /> Report of Inspection <br /> The land surface described above was inspected by hiking <br /> laterally along the accessible area between the adits of <br /> No. 1 Mine and No. 2 Mine, and moving vertically up the face <br /> and ridges to a point upon the spur below Huntsman Ridge <br /> where a steep outcrop prevented progress. The vertical <br /> distance hiked was over 1500 feet. <br /> Observations were made to detect both horizontal and <br /> vertical displacement of strata which could have been <br /> -4- <br />
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