The Mountain Legacy Project compiles historical survey photographs, maps and field notes created between years 1861 to 1953 by surveyors with the Geological Survey of Canada, the Department of the Interior’s Dominion Land Survey and other government departments. Repeated photographs of surveyed historical landscapes have been captured since 1998 onwards, in order to assess environmental change in the Canadian Rocky Mountains over the last century. This dataset compiles archival photographs and other objects from the Canadian Irrigation Survey of 1895, 1896, 1897, 1898, and 1899 by Arthur Oliver Wheeler, with repeated photographs taken in 2008, 2011 and 2014.