Section of McCoy formation 
* 
Measured in sections 8 ami 1" of T. 2 S., R.83 W . 
Conformable contact with. State Bridge siltstone 
Thick ness 
Units 
94. Sandstone, arkosic grits, and conglom- 
erates. pink to red, strongly cross- 
bedded, with few interbedded shales and 
limestones in lower portion . . . 640 
Measured on west side of Rock Creek bridge 
at NfcCov 
93. Limestone, hght gray, dense, no fossil? 
(Leadvilleoides of Khiers; 
4 
92. Conglomerate and sandstone, mostly 
pink to maroon, arkosic, cross-bedded, 
with little shale . . . . . 184 
91. Limestone, dark gray, not persistent, 
barren . . 
90. Conglomerate, pink to gray to maroon, 
arkosic; cross-bedded sandstone and 
micaceous shale 
30 
89. Limestone, dark gray, line-grained, with 
fo&grfe Lens shaped and splits into 2 
lateraHv 
88. Similar to unit 90. 
241 
87. Shale and sandstone, red and green, 
micaceous. Interbedded nodular lime- 
stone containing fossils. Coarse sand- 
