144 



tends as far east as Ryley. From this point to Oban, the 

 country is underlain by the Belly River series. The Eagle 

 hills in the vicinity of Oban, may be topped by a slight 

 thickness of Tertiary rocks. The Pierre shales extend from 

 Oban to east of Caye. They are subdivided into the 

 upper or Odanah and the lower or Millwood shales, the 

 latter being very fossiliferous in the vicinity of Uno. 



From Caye station eastward to Winnipeg and beyond, 

 the Devonian, Silurian and Ordovician rocks are buried 

 under the silts forming the bottom of glacial Lake Agassiz. 



Between the east border of the Eagle hills and Young 

 station, the railway traverses the bottom of glacial Lake 

 Saskatchewan, a probable contemporary of Lake Agassiz. 

 The lake was comparatively short lived, as evidenced by 

 the absence of well marked terraces or beaches. 



Annotated Guide. 



Miles and 

 Kilometres. 



752 m. Tofield — Altitude 2,289 ft. (697 m.). The 



1,209 km. Edmonton series of clays dips to the west and 

 may extend east to Ryley. Beyond Ryley the 

 surface is covered by drift containing consider- 

 able sand derived from the Belly River series 

 probably exposed east of Bruce. 



703 m. Phillips — Altitude 2,294 ft. (695 m.). Just 



1,131 km. east of Phillips the cuttings in the drift indicate 

 the undei lying sandy deposits. From here to 

 Kinsella, boulder clay predominates, and the 

 surface of the country is irregularly hilly. 



678 m. Hawkins — Altitude 2,126 ft. (647 m.). 



1,090 km. Several heavy cuts on the north side of Grattan 

 creek show a section in the Belly River series 

 consisting, in descending series, of light yellow 

 sandstones with occasional brown streaks con- 

 taining plant remains accompanied in some 

 places by thin seams of lignite, greyish green 

 shaly sands with brown ironstone nodules. In 

 the valley of Battle river, a harder sandstone 

 outcrops at a lower horizon and forms a slight 

 bench on both sides of the valley. 



667 m Wainwright — Altitude 2,213 ft. (673-4 m.). 



I 075 km. The underlying rocks are mostly of a sandy 

 nature similar to those at Battle River crossing. 



