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6960 <br />6920 <br />IJ <br />N <br />0 <br />Kwfl <br />wash - argely detri <br />ial from andstone - <br />CURVE RADIUS LENGTH <br />No. 6 1306.68 396.92 <br />No. 7 428.71 452.66 <br />t� j <br />Kwfl <br />lluvium <br />Kwft <br />WIN <br />1 <br />OEM <br />h <br />0 <br />a`o -lik,e Op6§i <br />7125 <br />Kwft <br />0 <br />Qal <br />Qf <br />I1� <br />x <br />ri <br />e -li <br />x� <br />a a <br />o Emba <br />1 <br />O <br />, <br />LI <br />� <br />- / s <br />6960 <br />=tea <br />6 <br />-i <br />QU g Areas of th s ground are classified generally as earth flows <br />LEGEND <br />Contact between map units, short <br />MAR 17 1992 <br />and all occur within the lower part of the Williams Fork <br />N <br />II <br />/ <br />Kwfl <br />14 o <br />Strike and di of rock <br />p <br />Recl <br />op <br />wash and co uviu <br />F <br />z— <br />s� A� <br />II <br />/ <br />lf—r7 �� <br />Scarps, variable in magnitude <br />• <br />� <br />OH -A Q <br />Drill hole for geotechnical sampling <br />- <br />` ull <br />s <br />\\N <br />/ <br />Peabody Coal monitoring hole <br />e <br />00.00 17d24'15" <br />50.00 60d2914611 <br />—ea o— 100 VC <br />JIM <br />6880 +„ / <br />s m / <br />111 •nlm / <br />u <br />U I // <br />mlm of <br />/ °� <br />6640 / VI 4ZTJ - <br />/ <br />P V I ELEI 6654.0 <br />/ A.D. = 2.07 <br />32 +00 36 +00 <br />u <br />NOTE: A,B,C DENOTES DITCH TYPE. (SEE EXHIBIT 13 -10) <br />T - . <br />Kwfl <br />r <br />00� ]075 <br />1075 /// / /qy" jp25 <br />/7025 • ° `e fir! :�.i <br />7000 oPe wash large) <br />ri `turn st <br />outcr <br />Kwfl <br />O <br />• <br />Nor <br />I1� <br />p <br />ri <br />a a <br />1 <br />O <br />, <br />LI <br />� <br />-1 <br />' 1 _ <br />1� <br />fl <br />0 <br />it4l <br />4 <br />4 <br />r <br />Kw <br />70570/50 <br />c ` 't0d dAA d E o <br />021 'Poe <br />% G~ QU x <br />/ <br />o— 100 VC / / <br />p0-1 / <br />w .000 <br />PYI S A = 46 +00 �h <br />EXPLANATION <br />PYI .E LEY = 8940.0 +a. 1� • , ,�_ <br />A . D . = 7.18 QUATERNARY SYSTEM <br />J I I Alluvium. Stream deposits including primarily clay- to fine <br />, .•4„ ,� t l ,• Qal sand -sized fractions with fragments of sandstone up to four to <br />E .+ 1 a' I 5e six inches in maximum dimension. Locally, sandstone fractions <br />�Im / �1 I 1 0 0 V C are larger, particularly in the northwestern part of the area <br />beneath cliffs of the Twentymile Sandstone. <br />ala I° <br />Alluvial Fan. Deposits composed primarily of detrital silt and <br />(,�f <br />sand w t boulders of sandstone up to two to three feet in <br />maximum dimension. <br />/ I� 1 Potentially Unstable Ground. Occurs primarily in sections of 00 1 - 111 Qpug lower part of the Williams Fork Formation where marine shale is <br />/ a the predominant rock type. Characteristics on the aerial <br />photographs, field observation and topographic slope indicate a <br />potential for this material to move. <br />11 <br />1 <br />K wfl <br />Kwfl <br />O <br />%I <br />N NO <br />O <br />I <br />I <br />E <br />/ <br />a a <br />Unstable Ground. Ground that is moving or has moved recently. <br />6960 <br />QU g Areas of th s ground are classified generally as earth flows <br />LEGEND <br />Contact between map units, short <br />MAR 17 1992 <br />and all occur within the lower part of the Williams Fork <br />dashes indicate most active ground movement <br />/ <br />14 o <br />Strike and di of rock <br />p <br />Recl <br />rnlm <br />F <br />z— <br />Formation where marine shale is the predominant rock type. <br />/ <br />lf—r7 �� <br />Scarps, variable in magnitude <br />69 2 <br />OH -A Q <br />Drill hole for geotechnical sampling <br />Characteristics on the aerial photographs are typical landslide <br />/ <br />Peabody Coal monitoring hole <br />e <br />ala <br />and slump features that can be confirmed on the ground. <br />/ / <br />w <br />i; <br />m m <br />Headscarps, slope scarps, hummocky ground, and related earth <br />flow features are common. <br />Stabilized Ground. Ground that appears primarily from study of <br />QSg <br />1. / <br />r <br />P V 1 S T A <br />= 4 B +0 0 <br />/ <br />MI <br />� <br />13 <br />; P V I E L E <br />= 6 9 7 0. 0 <br />FOR: <br />aerial pho ographs to have experienced previous movement, but <br />r v <br />PEABODY COAL COMPANY <br />� <br />� ,w <br />to be essential) stabilized. Areas of this <br />Y ground occur in <br />1 p C <br />'3. <br />A . D . <br />= 5. 00 <br />the lower part of the Williams Fork Formation which consists <br />`o <br />L � <br />� <br />primarily of marine shales. <br />=NO0I_:a <br />d <br />SURFICIAL GEOLOGY <br />x <br />Hic) P�io <br />CRETACEOUS SYSTEM <br />(Sta. <br />32 +00 to Sta. 50 +00) <br />- <br />6840 <br />GEOLOGY: J BI <br />APPROVED: <br />DRAFTING: <br />Williams Fork Formation <br />DATE: <br />2 -28 -92 <br />. <br />SCALE: <br />1" =100' <br />Twentymile Sandstone and Above. This map unit includes the <br />60 +00 <br />64 +00 <br />EXHIBIT 13 -19.2 <br />HAUL ROAD G <br />Kwft Williams Fark Formation from the base of the Twentymile <br />II <br />-W MINE <br />, <br />- <br />Sandstone to the top of the formation. Rocks in this unit <br />consist of interbedded sandstone, shale and coal. <br />Lower Units. This map unit includes the Williams Fork <br />\ <br />K wfl orma on rom the base of the Twentymile Sandstone downward to <br />the base of the Formation. That part of the Lower Unit <br />immediately below the Twentymile Sandstone is primarily marine <br />shale. <br />Note: More complete descriptions of the map units are included <br />in the text of the accompanying report. <br />4, <br />40 +00 44 +00 46 +00 52 +00 <br />56 +00 <br />DRAWN BY P.C.C. REVISION: SCALE: PHOTO DATE: 7 -1 -89 PEABODY COAL COMPANY. <br />HORIZ: 1" = 100' - <br />DATE: 1 -16 -91 APPROVED: R.J.G. VERT: 1" = 20 SHEET 2 OF 4 SHEETS 1300 SOUTH YILI FLAGSTAFF. IZ. 86001 <br />vt <br />i <br />1 <br />K wfl <br />Kwfl <br />O <br />%I <br />N NO <br />O <br />I <br />I <br />E <br />6960 <br />LEGEND <br />Contact between map units, short <br />MAR 17 1992 <br />dashes indicate most active ground movement <br />14 o <br />Strike and di of rock <br />p <br />Recl <br />1�49d�e�d <br />F <br />z— <br />F <br />— Fault, downthrown side indicated <br />lf—r7 �� <br />Scarps, variable in magnitude <br />69 2 <br />OH -A Q <br />Drill hole for geotechnical sampling <br />we-0091 0 <br />Peabody Coal monitoring hole <br />4 <br />i; <br />1 � <br />MI <br />� <br />13 <br />FOR: <br />PEABODY COAL COMPANY <br />� <br />� ,w <br />1 p C <br />'3. <br />N jo <br />\: 2 I- <br />0 <br />SENECA II -W MINE <br />`o <br />L � <br />� <br />HAUL ROAD G <br />=NO0I_:a <br />d <br />SURFICIAL GEOLOGY <br />x <br />Hic) P�io <br />(Sta. <br />32 +00 to Sta. 50 +00) <br />- <br />6840 <br />GEOLOGY: J BI <br />APPROVED: <br />DRAFTING: <br />DATE: <br />2 -28 -92 <br />. <br />SCALE: <br />1" =100' <br />DRAWING NO.., <br />9111-4 <br />60 +00 <br />64 +00 <br />EXHIBIT 13 -19.2 <br />HAUL ROAD G <br />SENECA <br />II <br />-W MINE <br />, <br />- <br />Ill�lllillll�Ilr INiIIIVii006393 <br />