Bedrock Geology

Contained within the 3rd Edition (1957) of the Atlas of Canada is a map that shows the bedrock geology across Canada that was compiled by the Geological Survey of Canada, circa 1956. The map denotes the geological time periods and makeup of bedrock for the Canadian landmass. This map denotes the bedrock geology using letter codes and colour to indicate surface coverage and principal rock types. The legend includes the era and period of when the rock types were formed.

Data and Resources

Additional Info

Field	Value
Last Updated	April 17, 2026, 19:21 (UTC)
Created	April 17, 2026, 19:21 (UTC)
contact_email	geoinfo@nrcan.gc.ca
contact_person	{}
criticality_level	[]
data_dictionary	["geoscientific_information"]
geographic_scope	[]
open_canada_collection	geogratis
open_canada_date_published	1957-01-01 00:00:00
open_canada_keywords	{"fr": ["carte géologique", "géologie", "sciences de la terre"], "en": ["earth sciences", "geological maps", "geology"]}
open_canada_subject	["form_descriptors", "nature_and_environment", "science_and_technology"]
sensitivity_level	unrestricted
title_fr	Géologie
update_frequency	as_needed