Colonels Mountain is a

mountain A mountain is an elevated portion of the Earth's crust, generally with steep sides that show significant exposed bedrock. Although definitions vary, a mountain may differ from a plateau in having a limited Summit (topography), summit area, and ...

in the

Canadian Canadians (french: Canadiens) are people identified with the country of Canada. This connection may be residential, legal, historical or cultural. For most Canadians, many (or all) of these connections exist and are collectively the source of ...

province of

New Brunswick New Brunswick (french: Nouveau-Brunswick, , locally ) is one of the thirteen provinces and territories of Canada. It is one of the three Maritime provinces and one of the four Atlantic provinces. It is the only province with both English and ...

. It lies adjacent to Big Bald Mountain, at the headwaters of the

Northwest Miramichi River The Northwest Miramichi River or Elmunokun is a river in New Brunswick, Canada. The Mi'kmaq referred to the river as Elmunokun, possibly meaning "a beaver hole" in reference to a deep pool in the river, just below the mouth of the Big Sevogle Ri ...

and the

Sevogle River The Big Sevogle River is a Canadian river in central New Brunswick. It consists of two branches, the North Sevogle and South Sevogle Rivers. Below the confluence of these rivers at the Square Forks, the river is properly referred to as the Big Se ...

. The mountain top has been weathered to generate a series of mushroom-shaped granitic

tors Tors may refer to: * Tor (rock formation), rock outcrops * Ivan Tors (1916–1983), playwright, screenwriter and film and television producer * TransOral Robotic Surgery, a surgical technique See also * Tor (disambiguation) * Ten Tors * Tors Cov ...

. Because the

weathering Weathering is the deterioration of rocks, soils and minerals as well as wood and artificial materials through contact with water, atmospheric gases, and biological organisms. Weathering occurs ''in situ'' (on site, with little or no movement), ...

process which forms tors is normally very slow, these features have been interpreted as indicating that part of northern New Brunswick escaped the last,

Wisconsinan glaciation The Wisconsin Glacial Episode, also called the Wisconsin glaciation, was the most recent glacial period of the North American ice sheet complex. This advance included the Cordilleran Ice Sheet, which nucleated in the northern North American Cor ...

.Rampton, V. N., Gauthier, R. C., Thibault, J., and Seaman, A. A. 1984. Quaternary geology of New Brunswick. Geological Survey of Canada. Memoir 416. It has been suggested, however, that the mountain lay near the centre of the

ice cap In glaciology, an ice cap is a mass of ice that covers less than of land area (usually covering a highland area). Larger ice masses covering more than are termed ice sheets. Description Ice caps are not constrained by topographical features ...

; these erosional remnants thus escaped the scouring action of the

glaciers A glacier (; ) is a persistent body of dense ice that is constantly moving under its own weight. A glacier forms where the accumulation of snow exceeds its ablation over many years, often centuries. It acquires distinguishing features, such as ...

References

Mountains of New Brunswick Landforms of Northumberland County, New Brunswick Mountains of Canada under 1000 metres {{NewBrunswick-geo-stub