Quercus rubra, commonly called northern red oak or champion oak.
From Wikipedia:
“Under optimal conditions, northern red oak is fast growing and a 10-year-old tree can be 5–6 m (15–20 ft) tall. Trees may live up to 500 years according to the USDA, and a living example of 326 years was noted in 2001 by Orwig et al.”
It is also the provincial tree of Prince Edward Island.
Westmount Overlooked 