Grindstone Creek (Hamilton Harbour)

Grindstone Creek is a stream in the Greater Toronto and Hamilton Area, Ontario, Canada. It is in the Great Lakes Basin and is a tributary of Lake Ontario at the western end of the lake.[1][2][3][4]

Grindstone Creek
Grindstone Creek flowing over the Niagara Escarpment at the Boundary Falls
Location of the mouth of Grindstone Creek in Southern Ontario
Location
Country	Canada
Province	Ontario
Region	Greater Toronto and Hamilton Area
Municipalities	Burlington Hamilton
Physical characteristics
Source	Lake Medad
• location	Burlington, Regional Municipality of Halton
• coordinates	43°22′09″N 79°53′23″W
• elevation	243 m (797 ft)
Mouth	Lake Ontario
• location	Burlington, Regional Municipality of Halton
• coordinates	43°17′25″N 79°52′59″W[1]
• elevation	74 m (243 ft)
Basin features
River system	Great Lakes Basin

The creek begins Lake Medad in the city of Burlington, Regional Municipality of Halton. It flows west immediately into the unitary city of Hamilton. The creek turns southwest into the community of Waterdown, and flows over the Niagara Escarpment at Boundary Falls. It re-enters Burlington at the community of Aldershot, turns west, and reaches its mouth at Hamilton Harbour on Lake Ontario, adjacent to the Royal Botanical Gardens.