The 26th International Conference on Algorithmic Learning Theory ALT 2015) and the 18th International Conference on Discovery Science (DS 2015) will be held in Banff, Canada, during 4–6 October 2015.
The host town Banff lies in the west of Canada, at the heart of the Rocky Mountains inside the Banff National Park. See the Wikipedia page on Banff for more information about the conference location.