Aggregate resources inventory of the Town of East Gwillimbury, Regional Municipality of York
Subtitle: Southern Ontario
By: by Staff of the Maple District Office, Ontario Ministry of Natural Resources, and the Engineering and Terrain Geology Section, Ontario Geological Survey, Mines and Minerals Division, Ontario Ministry of Northern Development and Mines.
Series: Aggregate resources inventory paper -- 121
Publisher: s.n
Published: 1988
Place of publication: S.l
Language: eng
Number of pages: 38
Notes: 1