The Nine Mile River is a watercourse situated in Grey County, Ontario, Canada. It originates in the uplands of the interior of Grey County and flows predominantly in a northwesterly direction. The river ultimately empties into Georgian Bay, which is a large bay of Lake Huron. Characterized as a relatively modest river, it traverses a landscape that includes agricultural lands and rural areas within its watershed. The name "Nine Mile River" likely refers to its approximate length or its distance from a significant reference point when it was named. It is one of many smaller rivers and streams that drain the land within this part of Southwestern Ontario.
Browse