Editing Geography of Canada (section)

===Canadian Shield===
{{further|Canadian Shield}}
[[File:Canada geological map.JPG|thumb|upright=1.2|The [[Canadian Shield]] is a broad region of Precambrian rock (pictured in shades of red)]]
The northeastern part of [[Alberta]], northern parts of [[Saskatchewan]], [[Manitoba]], Ontario and Quebec, all of [[Labrador]] and the [[Great Northern Peninsula]] of [[Newfoundland (island)|Newfoundland]], eastern mainland [[Northwest Territories]], most of [[Nunavut]]'s mainland and, of its [[Arctic Archipelago]], [[Baffin Island]] and significant bands through Somerset, Southampton, Devon and Ellesmere islands are located on a vast [[bedrock|rock base]] known as the [[Canadian Shield]].<ref name="britannica">{{Cite web|title=Canadian Shield|url=https://www.britannica.com/place/Canadian-Shield|author=Encyclopædia Britannica|author-link=Encyclopædia Britannica|url-status=live|archive-url=https://web.archive.org/web/20150624232123/https://www.britannica.com/place/Canadian-Shield|archive-date=24 June 2015|access-date=10 February 2009}}</ref> The Shield mostly consists of eroded hilly terrain and contains many lakes and important rivers used for [[hydroelectricity|hydroelectric]] production, particularly in northern Quebec and Ontario. The Shield also encloses an area of [[wetlands]] around the [[Hudson Bay]]. Some particular regions of the Shield are referred to as [[mountain range]]s, including the [[Torngat Mountains|Torngat]] and [[Laurentian Mountains]].<ref name="SonPress2002">{{cite book|author1=George Philip and Son|author2=Oxford University Press|title=Encyclopedic World Atlas|url=https://books.google.com/books?id=8UD0kOEb1XIC&pg=PA68|year=2002|publisher=Oxford University Press|isbn=978-0-19-521920-3|page=68}}</ref>

The Shield cannot support intensive agriculture, although there is subsistence agriculture and small dairy farms in many of the river valleys and around the abundant lakes, particularly in the southern regions. [[Boreal forest]] covers much of the shield, with a mix of [[conifers]] that provide valuable timber resources in areas such as the [[Central Canadian Shield forests]] [[ecoregion]] that covers much of [[Northern Ontario]].

The Canadian Shield is known for its vast [[mineral]] reserves such as [[emerald]]s, [[diamond]]s and [[copper]], and is there also called the "mineral house".<ref name="SonPress2002"/>