Curious. I couldn't get quotes on main Marriott website. Did find this and you could try calling or emailing to inquire if the property left the Marriott family:

http://www.ribmcanmore.com/html/book_a_room.html

[email protected]

Residence Inn by Marriott
91 Three Sisters Drive
Canmore, Alberta
Local ph: (403) 678-3400
Toll-free: 1-877-335-8800