GEOLOQY: ADAMS AND DICK 
vvho has mapped this area for the Geological Survey of Canada, 
stratigraphical and paleontological considerations the authors 
/vere led to the conclusion that the horizon equivalent to the Phosphoria 
formation of the south was that at the contact between the Rocky 
Mountain quartzite and the Upper Banff limestone of Allan's section. 
These formations are repeated by faulting and appear as a set of parallel 
bands which cross the area four times in a general northeast and south- 
west direction. Forty Mile Brook crosses the contact three times, and 
a search was accordingly made in the shingle and loose blocks carried 
down by the stream, for 'float' of phosphate rock. This was found in 
the stream at the foot of Stony Squaw Mountain. The phosphate rock 
is of a hard compact variety which somewhat resembles basalt, a type 
found in certain of the Montana deposits. It contains 54% of tri- 
calcic phosphate. An examination of the mountain itself showed that 
a heavy band of chert occurs along the contact of the Rocky Moun- 
tain quartzite and the Upper Banff limestone, and a chemical examina- 
tion showed that this chert in all cases carries phosphoric acid in small 
amount. A thin bed of phosphate of lime was also found on the moun- 
tain in association with this chert. 
The discovery of this phosphate rock was reported to the director of 
the Geological Survey of Canada and Mr. DeSchmidt was directed to 
make a detailed examination of the phosphate bearing horizon for the 
purpose of ascertaining whether beds of commercial value could be 
discovered. This gentleman had discovered two beds of which the larger 
was two feet in thickness, when his examination was brought to a close 
by the snowfall. The search, however, will be continued by the Geo- 
logical Survey of Canada next spring. 
