Counts & Measurements of Ontario Lakes

Published in 1978 by the Surveys and Mapping Branch of the Ministry of Natural Resources, this document serves as a valuable resource for statistical counts and measures of Ontario's lakes.  It is the original source for the often-referenced count of 225,000 lakes within the province.  The document also provides an interesting statistical analysis in which the authors hypothesize that there may be over 1 million lakes in Ontario.  Summarized by watershed units, these measurements described the amount and distribution of lakes for the purpose of sound resource planning and management in the 1970's... a practice which continues within the MNR to this day.