The Golden Horseshoe is a secondary region of Southern Ontario, Canada, which lies at the western end of Lake Ontario, with outer boundaries stretching south to Lake Erie and north to Lake Scugog, Lake Simcoe and Georgian Bay of Lake Huron. Wikipedia

Densely populated and industrialized region centred on the west end of Lake Ontario in Southern Ontario, Canada. Wikipedia Disambiguation

Region of Ontario directly west and adjacent to Lake Ontario Wikidata

The U-shaped area of the Canadian province of Ontario which extends along the northwestern, western, and southwestern shoreline of Lake Ontario from metropolitan Toronto to the Niagara River, comprising one of Canada's most populated and economically productive regions. Wiktionary