268 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 75 



The total thickness of the strata between the Devonian and the 

 base of the Cambrian is 3,540 feet (1,078.9 m.) and includes : 



Feet Meters 



Sarbach formation 124 37.8 



Mens formation 986 300.5 



Unnamed formation 400 121. 9 



Lyell formation -. 1,4/0. 448.1 



Bosworth formation 165 50.3 



Arctomys formation 95 28.9 



Eldon formation 300 + 91-4 + 



Total Ranger Canyon Section 3,540+ 1,078.9 + 



Wild Flower Canyon Section 



The name " Wild Flower Canyon " is derived from the luxuriant 

 growth of wild flowers in the vicinity of a small spring-fed pond about 

 2.5 miles (4 km.) from the mouth of the canyon. Mrs. Walcott 

 identified 82 species in blossom in July within a short distance of the 

 pond. 



The canyon enters Baker Creek Canyon about 9 miles (14.5 km.) 

 in a direct north-northeast line from where Baker Creek joins the 

 Bow River. It extends back into the mountain in a southeasterly 

 direction for 3.5 miles (5.6 km.) and heads on a pass leading over 

 into Johnston Creek Canyon. The section is 5 miles (8 km.) south- 

 southeast of Fossil Mountain and about 16 miles (25.7 km.) north- 

 east of Ranger Canyon. It is an unusually fine one and should be 

 studied in detail when a good topographic map of the Sawback Range 

 area is available. 



The most northerly spur of the Castle Mountain massif terminates 

 between Baker Creek and Wild Flower Canyons. It forms a high 

 ridge on the southwest side of Wild Flower Canyon and is composed 

 of massive-bedded, cliff-forming Middle Cambrian limestones of the 

 northeast side of the broad Castle Mountain syncline. On the north- 

 east side of Wild Flower Canyon the highly inclined limestones of 

 the Ozarkian Mons formation rise to 9,000 feet (2,743.2 m.) or 

 more. The Osarkispira zone of the upper Mons is finely exposed 

 northwest of and a little below the Johnston Pass, asid the KaineUa 

 and Symphysurimi faunules occur a little lower in the section in the 

 outcrops on the cliff's above and northeast of Wild Flower Pond. 

 About 2 miles (3.2 km.) from the mouth of the canyon a small tribu- 

 tary canyon cuts back northeasterly through the Mons and subjacent 

 Upper Cambrian, Lyell, Bosworth, and Arctomys formations. It is 

 practically a repetition of the Ranger Canyon section except that 



