A 1:250 000 scale map of the bedrock geology of Ontario.
This seamless GIS dataset includes such themes as bedrock units, major faults, dike swarms, iron formations and kimberlites, and also includes an interpretation of the Precambrian bedrock geology underlying the Hudson Bay and James Bay lowlands Phanerozoic cover.
This product is intended for use at scales of 1:250 000 and smaller.
