During the summer of 1914 the writer of this paper had the occasion to visit the foothill district of Alberta, Canada, and by means of traverses of the consequent streams which cut across the upturned strata at right angles to their trend succeeded in obtaining some geological data which, although incomplete, it is hoped will be of service to future investigators in this field.
The district described lies between the abrupt eastward facing escarpment of the Lewis thrust-fault of the Rocky Mountains and the horizontal strata of the Great Plains. It is called the foothill district. The portion of this semi-mountainous area treated here lies southwest of the city of Calgary and is a narrow strip of country about 15 miles wide and 70 miles long, bounded on the north by the Bow River and on the south by the North Fork of Willow Creek.
Physiographic . . .