The apatite region of Ottawa county comprises the area included between the lower portions of the Du Lievre and Gatineau rivers. The chief mining districts occur in Portland and Templeton townships, but deposits of greater or less extent are found over nearly the whole of the area.
The region lies upon the southern flank of the Laurentian axis, and is characterized in large part by a somewhat rugged topography. For some distance north of the Ottawa river, the surface is comparatively level, but this feature gradually gives place to hills which rise to a height of from 500 to 700 feet above the level of the adjacent rivers. The hills are covered with a meager soil, and the forest growth, originally limited, has been largely swept away by fires. The region is drained chiefly by the two rivers mentioned above, which flow southward into . . .