The University of Alberta’s Atlas of Alberta Lakes contains a chapter on Sylvan Lake.
Five sections describe the lake and its condition. two sections contain more reference material. Click on these links:
Alberta Environment and Sustainable Resource Development has posted four high resolution maps of Sylvan Lake on this Restricted Development Activity Area web page. The same four maps plus the Alberta Conservation Association report on aerial shoreline assessment are compiled into a single file (18 MB) that may be downloaded here.