I just finished uploading and updating the Skyline Trail page with all of the historical map links we recently received from the UofO map library.  At the bottom of the page there are now high quality map scans of the trail route from 1921, 1925, 1931, 1936, 1952, 1961, 1965, 1969, 1970 and 1972.  Please be aware that these files are rather large, so will take a while to download.  Many of the maps also have the reverse side scanned which include some historical text about the trail.