562 



N. H. DARTON FISH REMAINS IN ORDOVICIAN ROCKS 



glomerate of the Fountain formation. On the opposite side of Arkansas 

 river the Harding sandstone is about 200 feet thick and is overlain by 

 about 100 feet of limestones, in part sandy, capped by a 20-foot bed of 

 light-gray sandstone. On the irregular upper surface of the latter lie 

 coarse conglomerates at the base of the Fountain formation. Both the 



Scale of miles 



12 3 4- 







Gretace oias 



VZTZZfi 



.RecLIbecLs XCarboniferous 



Qrd-OvicisxL Giraziite etc. 

 izruZerlcczn. by 



Figure 5. — Sketch Map of Manitou Embayment, west of Colorado Springs, Colorado. 



Harding sandstone and the Fremont limestone end a short distance to 

 the south on Grape creek, the sandstone terminating at a point about 

 three-fourths of a mile south of Arkansas river. The Fountain forma- 

 tion also thins rapidly, and at a point a mile south of the river is only 

 about 250 feet thick. 



