Colonels Mountain is a mountain

Mountain

Image:Himalaya_annotated.jpg|thumb|right|The Himalayan mountain range with Mount Everestrect 58 14 160 49 Chomo Lonzorect 200 28 335 52 Makalurect 378 24 566 45 Mount Everestrect 188 581 920 656 Tibetan Plateaurect 250 406 340 427 Rong River...

 in the Canadian

Canada

Canada is a North American country consisting of ten provinces and three territories. Located in the northern part of the continent, it extends from the Atlantic Ocean in the east to the Pacific Ocean in the west, and northward into the Arctic Ocean...

 province of New Brunswick

New Brunswick

New Brunswick is one of Canada's three Maritime provinces and is the only province in the federation that is constitutionally bilingual . The provincial capital is Fredericton and Saint John is the most populous city. Greater Moncton is the largest Census Metropolitan Area...

. It lies adjacent to Big Bald Mountain

Big Bald Mountain (New Brunswick)

Big Bald Mountain is a prominent peak in the Canadian province of New Brunswick. It lies adjacent to Colonels Mountain, east of the Christmas Mountains, and near the headwaters of the Northwest Miramichi River, the Sevogle River, and the South Branch Nepisiguit River...

, at the headwaters of the Northwest Miramichi River

Northwest Miramichi River

The Northwest Miramichi River is a Canadian river in New Brunswick. 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 River, its largest tributary.The Northwest Miramichi River has its...

 and the Sevogle River

Sevogle River

The 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 Sevogle River"...

.

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

Weathering

Weathering is the breaking down of rocks, soils and minerals as well as artificial materials through contact with the Earth's atmosphere, biota and waters...

 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

Wisconsinan glaciation

The Wisconsin Glacial Episode was the most recent major advance of the North American Laurentide ice sheet. Globally, this advance is known as the last glacial period. The Wisconsin glaciation extended from approximately 110,000 to 10,000 years ago, between the Eemian interglacial and the current...

. It has been suggested, however, that the mountain lay near the centre of cold-based ice; these erosional remnants thus escaped the scouring action of the glaciers.