edge of the Coteau hills on the line characterized by chains of alkaline lakes &c.
West of this road follows along the northern edge of the Inner or central plateau, following or cutting across vallies characterized by salinity & frequently containing or draining into saline lakes.

Sketch with Lig.Ter.; 49"; central plateau; saline lakes; Coteau drift beds; Prairie level.

The Watershed between the Missouri & rivers draining Northwards evidently a gentle elevation of Tertiary & Cretaceous strata & has been formed & eroded (in the way mentioned in a previous note) before the deposit of the Drift material along its Northern & Eastern edges. Hector figures overlap of Coteau drift on Cretaceous rocks on S. Saskatchewan exactly similar to overlap observed by myself on Tertiary further S.

Sketch

The northern slope of Coteau along which the Traders Rd passes is in general like the prairie about