Limehouse, Ontario
J. C. Duff Sand & Gravel Limited
http://www.jcduff.com/

A trip by the FabFours to see a glacial deposit quarry on Earth Day.

Group Shot with Gravel Samples Copyright © 2004 J. C. Duff Sand & Gravel Limited   Source: http://www.jcduff.com/CharlesHowitt.htm Lessons in Gravel Tour Guide, Ian Duff Rock Hunt

To find out how your class can visit a local quarry in Ontario,
visit OSSGOA Ontario Stone, Sand and Gravel Association.