396 WAELILNS IR IL)BIS 
45 Dark shale, with limestone nodules and thin seams of sandstone; runs to massive 
limestone in places; becomes red and arenaceous near the base. 
7 Coarse grit. 
to Dark red shale, with nodules and irregular masses of limestone. 
4 Limestone. 
12 Red to black micaceous shale, with bands of sandstone near the base, and lime- 
stone nodules near the top. 
Io Coarse grit. 
? Red grit and conglomerate. 
Crystalline rocks of the mountains. 
Winiisgal einEs 
TRINIDAD, COLO. 
