Fig. 367.—Diagrams to illustrate the episodes in the recent history of the Still River tributary to the Farmington in Connecticut. A, present drainage; B, early stage; C, after capture of a tributary to the Farmington; D, after blocking by morainal obstructions of the ice age.
Glacial Lake Ojibway in the Hudson Bay drainage basin.—When by passing over the “height of land” in northern Ontario the greatly reduced continental glacier had vacated the basin of St. Lawrence drainage, it was in a position to impound those waters which normally drained to Hudson Bay. The lake which then came into existence has been called Lake Ojibway and was the latest of the entire series. Though of but recent discovery in a country till lately a trackless wilderness, its extension seems to have been that of the clay beds suited for farming. The beaches and outlets remain to be mapped when the country has been made more easily accessible.
Reading References for Chapter XXIII
Parallel roads of Glen Roy:—
Charles Darwin. Observations on the Parallel Roads of Glen Roy and of Other Parts of Lochaber in Scotland, with an attempt to prove that they are of Marine Origin, Phil. Trans., vol. 8, 1839, pp. 39-82.
Louis Agassiz. Geological Sketches, Boston, 1876, vol. 2, pp. 32-76.
T. T. Jamieson. On the Parallel Roads of Glen Roy and their Place in the History of the Glacial Period, Quart. Jour. Geol. Soc. Lond., vol. 19, 1863, pp. 235-259.
Glacial Lake Agassiz:—