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Drill Hole Lithology Summary <br />• Drill Hole Ea Northing Collar Total Depth Township Range Section File <br />C -06 -19 <br />1,330, 390.09 <br />346,479.91 7,78614 <br />1,060.00 <br />T03N R94W <br />2 <br />5C <br />Adjusted Depths <br />From <br />To <br />Seam <br />Thickness Lithologic Qualifiers <br />Lithology Type <br />Shade <br />Color <br />389.15 <br />397.10 <br />7.95 com sandy lams <br />bcmg sandy @ <br />mudstone /siltstone <br />dark -me <br />grey <br />397.10 <br />402.15 <br />5.05 slightly silty <br />sandy /clayey in <br />mudstone <br />dark <br />grey <br />402.15 <br />406.65 <br />4.50 common thin <br />carby /ms lams <br />sandstone <br />light -med <br />grey <br />406.65 <br />409.35 <br />2.70 clayey w/ depth <br />slightly silty <br />mudstone <br />dark -me <br />grey <br />409.35 <br />409.80 <br />0.45 <br />carbonaceous mudston <br />dark grey <br />black /bro <br />409.80 <br />412.90 <br />F5 <br />3.10 moderately brig <br />occ dull zones <br />coal <br />412.90 <br />417.20 <br />F6 <br />4.30 moderately brig <br />occ dull zones <br />coal <br />417.20 <br />417.50 <br />0.30 bright <br />carbonaceous mudston <br />black/bro <br />417.50 <br />418.10 <br />0.60 dull, bright <br />grading to cros <br />boney coal <br />black <br />418.10 <br />418.65 <br />0.55 very carby <br />carbonaceous mudston <br />grey /bro <br />418.65 <br />431.40 <br />12.75 interlaminated <br />w /ss &st <br />mudstone /siltstone <br />dark <br />grey <br />431.40 <br />432.80 <br />F7 <br />1.40 moderately brig <br />coal <br />432.80 <br />434.00 <br />1.20 <br />carbonaceous mudston <br />dark <br />grey -blac <br />434.00 <br />434.30 <br />ZZ <br />0.30 moderately brig <br />coal <br />434.30 <br />436.20 <br />1.90 <br />mudstone <br />dark <br />grey <br />436.20 <br />439.20 <br />3.00 <br />sandstone <br />light -med <br />grey <br />439.20 <br />449.40 <br />10.20 slightly <br />sandy <br />mudstone /siltstone <br />dark <br />grey <br />449.40 <br />452.00 <br />F9 <br />2.60 moderately brig <br />coal <br />452.00 <br />462.20 <br />10.20 <br />mudstone /siltstone <br />dark <br />grey <br />462.20 <br />464.30 <br />2.10 <br />sandstone <br />light -med <br />grey <br />464.30 <br />478.70 <br />14.40 silty <br />mudstone /siltstone <br />dark <br />grey <br />478.70 <br />492.60 <br />13.90 interbedded <br />sandstone /mudstone <br />dark <br />grey <br />492.60 <br />499.30 <br />6.70 <br />mudstone /siltstone <br />dark <br />grey <br />499.30 <br />505.35 <br />6.05 interbedded <br />interlaminated <br />mudstone /sandstone <br />dark <br />grey <br />505.35 <br />506.00 <br />0.65 <br />carbonaceous mudston <br />black /bro <br />dark gre <br />506.00 <br />509.30 <br />FA <br />3.30 moderately brig <br />abundant <br />coal <br />509.30 <br />520.80 <br />FB <br />11.50 moderately brig <br />com pyrite <br />coal <br />520.80 <br />521.70 <br />0.90 bright <br />bone in parts <br />carbonaceous mudston <br />black to <br />black/bro <br />521.70 <br />530.00 <br />G7 <br />8.30 moderately brig <br />coal <br />530.00 <br />537.80 <br />G8 <br />7.80 moderately brig <br />coal <br />537.80 <br />538.85 <br />G9 <br />1.05 moderately brig <br />coal <br />538.85 <br />542.35 <br />3.50 occ black <br />carbonaceous mudston <br />black /bro <br />dark gre <br />542.35 <br />551.45 <br />9.10 occ silt interbed <br />interlaminated <br />mudstone <br />dark -me <br />grey <br />551.45 <br />551.90 <br />0.45 soft <br />carbonaceous mudston <br />black <br />black /bro <br />551.90 <br />555.95 <br />GA <br />4.05 moderately brig <br />w/ occ dull zone <br />coal <br />555.95 <br />558.65 <br />2.70 <br />carbonaceous mudston <br />dark <br />grey /bro <br />558.65 <br />566.35 <br />GB <br />7.70 pred mod bright <br />w/ occ zones <br />coal <br />• <br />566.35 <br />566.85 <br />0.50 slightly boney <br />carbonaceous mudston <br />black <br />dark gre <br />Rio Tinto Energy America - <br />Colowyo Mine <br />Page <br />735 of 1194 <br />