|Best months for climbing:||Jun, Jul, Aug, Sep|
|Year first climbed:||1927|
|First successful climber(s):||F.H. Parkes, S. Henderson, M. Winram|
|Nearest major airport:||Vancouver, British Columbia|
|Convenient Center:||Vancouver, British Columbia|
Slesse Peak is a steep rock pinnacle with multiple peaks. It is located just north of the United States border, northeast of Mount Baker (10,778 ft.). The name Slesse is a Native American (Salish) word meaning fang, a word which accurately describes the sheer, sharp peak of this mountain, which was long considered unclimbable.