South Heart River From Wikipedia, the free encyclopedia The South Heart River is a river of Alberta.[1] It empties into Lesser Slave Lake and is the largest river flowing into it. ↑ "South Heart River / South Heart River, Alberta, Canada, North America". 55°34′01″N 116°11′09″W / 55.56681°N 116.18578°W / 55.56681; -116.18578 Authority control databases InternationalVIAFNationalUnited StatesIsrael This article related to a river in Alberta, Canada is a stub. You can help Wikipedia by expanding it.vte Related Articles