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 1921, 1922, 1923 Kootenay and Columbia Valleys survey by Morrison Parson Bridgland, with repeat photographs taken in 2006, 2007, 2009, and 2010.