a river in W Canada, flowing NE from the Rocky Mountains in E British Columbia through Alberta to the Slave River. 1050 miles (1690 km) long.
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British Dictionary definitions for peace river
a river in W Canada, rising in British Columbia as the Finlay River and flowing northeast into the Slave River. Length: 1715 km (1065 miles)
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012