The Three Sisters is arguably Alberta's most recognizable mountain outside of the national parks. Based in Canmore, the mountain peak was originally named the "Three Nuns". However, in 1886, Canadian geologist, George Dawson, referred to each peak individually as the "Big Sister", "Middle Sister", and "Little Sister". The mountain later evolved into "Three Sisters".

MTNPK Glassware is donating part of the proceeds of this limited edition 16oz glass to the Rocky Mountain Adaptive (RMA) non-profit. RMA provides individuals with disabilities the opportunity to participate, learn, and excel in over 20 different mountain sports and recreational activities.