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106+70 to 123+70 Fill on colluvium; may require a <br />culvert although upslope drainage <br />basin not extensive. Between <br />110+00 and 120+00 crosses easter <br />part of alluvial plain formed :. <br />Scotchmans Gulch. <br />123+70 to 138+00 TH-6 and TH-7 are in this react <br />TH-6 is in Zone of deep <br />irregular soil fractures at nor :i <br />end of cut (between 123+00 nd <br />127+50) and encountered clays:~ne <br />primarily. TH-7 at north end of <br />cut encountered mainly clay. <br />Cuts probably will encounter <br />fresh to weathered interbedded <br />sandstone and shale. Cuts from <br />about 1.9:1 to 3.2:1 could be <br />steepened to 1.5:1 to 1:1 to <br />reduce erosion. Dip of bedrock <br />should generally be from 3°-l0° <br />W; assume an average of about 7°. <br />138+00 to 141+20 <br />141+20 to 149+30 <br />149+30 to 153+10 <br />153+10 to 161+03.17 <br />4.2 Haul Road B <br />Minor fill, culvert unnecessary. <br />Shallow cut in colluvium; should <br />not reach bedrock. <br />Shallow fill in minor drainages; <br />may require culvert. <br />Shallow cut and fill in <br />colluvium, 161+0.317 end point of <br />alignment A and origin of <br />alignment B. <br />Note: The shallow cut at the end <br />of Alignment A conflicts with the <br />shallow fill at the beginning of <br />Alignment B to the south. <br />This haul road starts with Sta. 0+00 at the end of Haul Road A <br />and extends to its terminus at Sta. 84+00 in the north central of <br />sec. 17, where the alignment enters the mine. The last 1400 feet <br />of the alignment is within the mine area and is not part of this <br />investigation. The alignment trends along a major perennial <br />unnamed stream to the mine area. From its origin to approximately <br />• <br />L J <br /> <br />22 <br />