Archived Content Notice: This publication is provided for reference, research or recordkeeping purposes. It is not
subject to the Government of Canada Web Standards and has not been altered or updated since it was archived. Please contact us to
request a format other than those available.
Géopanorama de Toronto; Doyle, V M; Steele, K G. Geological Survey of Canada, Miscellaneous Report 83, 2003, 1 sheet,
https://doi.org/10.4095/214176 
Open Access