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,: N 0 Qpug r' f ►RR��A FAIN IVAN I 1 25 ' U ,Z15 l ME W i .fir �/,�•' a, I Qpug QU F 725° Kwfl _- �0` �2p0- .1l'�- C 7300 V300 C U F V E RADIUS LENGTH 7 TANGENT DELTA No. 9 1006.00 199.35 100.00 11d21'13" 7260 7240 7200 7 16 0 f 71201 60 +00 64 +00 I NOTE: A,B,C DENOTES DITCH TYPE. (SEE EXHIBIT 13 -10) j 66 +00 r` JQ fi 9 4 Is I ° °f ve get ut ck cover and Ill obscures na re of slope. Qsg i 1y x,325 w U y ,4T5 s e q5° y 9 a N 300 mm H mm ky gr no QUg 1p25 a Qu g '` )0 a ur I o c e II ° u ky s e k(Y, stow QU g el W 091 ll • S OUt - � ll ' si9 a ll ' e m m • wf th t lc eoll .o a II 0? OU u K I jj ' • d �< II g Kwf I TFA '35 �j K f - A 1 Qsgi ,^ N ° U "'3T5 73 / I 200 VC o ' 7280 O Ci -F N t N Jv F ❑ EXPLANATION LEGEND � ` m QUATERNARY SYSTEM y Alluvium. Stream deposits including primarily clay- to fine ��I`-'"'n Qal' son -ed fractions with fragments of sandstone up to four to Contact between map units, Short siz six inches in maximum dimension. Locally, sandstone fractions dashes indicate most active ground Rovement 'AAR 17 1992 are larger, particularly in the northwestern part of the area 'm m beneath cliffs of the Twentymile Sandstone. 140 Str Alluvial Fan. Deposits composed primarily of detrital silt and F F ike and dip of rock fined Land �prl Qf son h boulders of sandstone up to two to three feet in Z— Fault, doWnthroWn side indicated maximum dimension. -B• fig Potentiall Unstable Ground. Occurs primarily in sections of TT �� Scarps, variable in magnitude PV 1 STA = 76 +A.0 QPu9 ower part All Williams Fork Formation where marine shale is the predominant rock type. Characteristics on the aerial DH -A Q Drill hole for geoteehnie @1 sampling „ ! P V 1 E L E = 7 2 4 8. 0 photographs, field observation and topographic slope indicate a 4 D . 5 . 5 B potential for this material to move. WO-0091 0 Peabody Coal monitoring hole Unstable Ground. Ground that is moving or has moved recently._ QUg Areas o th s ground are classified generally as earth flows 3 and all occur within the lower part of -the Williams Fork Formation where marine shale is the predominant rock type.' Characteristics on the aerial photographs are typical landslide 4f and slump features that can be confirmed on the ground. " Headscarps, slope scarps, hummocky ground, and related earth M i ❑ p Gy, flow features are common. 71 '•'�' �•' Stabilized Ground. Ground that appears primarily from study of b, I + ^ QSJ aer al photographs to have experienced previous movement, but fi CID � l '�u071 to be essentially stabilized. Areas of this ground occur in e; ; �=��• • � la the lower part of the Williams Fork Formation which consists • ;„ lil y P rimaril y of marine shales. PEABODY COAL COMPANY !0 m 113 d CRETACEOUS SYSTEM E_ co Williams Fork Formation J ! I ❑ S Twentymile Sandstone and Above. This map unit includes the a K wft Williams Fork Formation. from the base of the Twentymile •'; Sandstone to the top of the formation. Rocks in this unit SENECA •II -W MINE olo �I❑ 1sL0 consist of interbedded sandstone, shale and coal.. ` 7 a" u,Ulu o Lower Units. This map unit includes the Williams Fork HAUL ROAD_ G K wfl ormat on rom the base of the Twentymile Sandstone downward to the base of the Formation. That part of the Lower Unit S U R FICI AL GEOLOGY' immediately below the Twentymile Sandstone is primarily marine shale. (Sta. 66 +00 to Sta. 80 +46.01) I Note: More complete descriptions of the map units are included in the text of the accompanying report. GEOLOGY: J BI APPROVED: DRAFTING: " DATE: SCALE: DRAWING NO.: i 2 -28 -92 1 " =100' 9111 —6 7120 72 +00 DRAWN BY: P.C.C. REVISION: SCALE: PHOTO DATE: 7 -1 -89 PEABODY COAL COMPANY EXHIBIT 13 -19.4 HORIZ: I" = 100' HAUL ROAD G DATE: 1 -16 -91 APPROVED: R.J.G. VERT: 1" = 20' SHEET 4 OF 4 SHEETS .1300 SOOYO YALE FLAGSTAFF, AZ. 00001 S E N E C A I I - W M I N E IUI f