Geol. The supposed limestone exposure occurs in a small running brook near the 16º mile point on the line counting from the British Station at the East end of the Mountain. It appears to be merely a large stratified boulder of that rock. It shows 3 or 4 square feet at the edge of the water, & has been broken up by the weather since its deposit there, so as to exhibit the stratification planes & make it resemble a portion of a bed in situ with a high dip E-Easterly. Many other boulders (chiefly of gneiss) occur near it, & the whole of the features of the mountain go against its being really in place.

The "Mountain" appears to be merely a more elevated & broken region of the surrounding country, & to be composed entirely of drift. Nearly all the abrupt slopes & ridges show boulders in abundance & these appear to be chiefly of Laurentian rocks. The shores of Anderson Lake are gravelly & white limestone here appears to be more abundant than any other rock. Laurentian pebbles are frequent & greenish & greyish Huronian looking samples were also observed.
Rejecting the hypothesis of any nucleus of limestone or other rock in place, the area now covered by the Mountain may have been one in which the set of currents originally tended to accumulate floating bergs during the Glacial Submergence. Such an area would have been one of greatest deposition, & having once become a bank or shoal