Magna Terra Minerals Inc. engages in the acquisition and exploration of mining properties in Canada and Argentina. It explores for gold and silver deposits. The company's flagship project is the 100%-owned Great Northern Project comprising two claim blocks, which includes Great Northern and Viking Zones covering an area of 13,775 hectares located in western Newfoundland. The company was formerly known as Brionor Resources Inc. and changed its name to Magna Terra Minerals Inc. in June 2017. Magna Terra Minerals Inc. is headquartered in Toronto, Canada.