The French River flows through typical Canadian Shield country, in many places exposing rugged glaciated rock but also through heavily forested areas on the upper portion. The mouth of the river contains countless islands and numerous channels which vary from narrow, enclosed steep-walled gorges, falls and rapids, to broad expanses of open water.
Together with the Ottawa and Mattawa Rivers, the French River formed part of the water highway from Montreal to Lake Superior in the days of the fur trade. It remained a major canoe route until about 1820. Around 1855,[4] the Grand Trunk Railway provided newfound access to the area and the Georgian Bay. This led to increased exploration and interest for fishing and logging during the era of the Industrial Revolution. After the Great Chicago Fire in 1871,[5] there was a boom in logging along with the creation of Lumber barons in the Great Lakes. The French River was "ripe for the picking with its seemingly inexhaustible supply of timber and proximity to the American markets".[6]
Near the end of the 19th century, logging became the primary activity in the area. It was later settled as a summer tourist and recreation area. For this reason, the French River was designated a Canadian Heritage River in 1985.[7] Because of the rugged nature of the Canadian Shield country surrounding this river, large parts of this river remain relatively untouched and it is now a popular location for recreational canoeing, kayaking, photography, camping, fishing and boating.
Most of the river's shores from Lake Nipissing to the Georgian Bay, except for the land occupied by the Dokis First Nation between the Upper and Lower French River, have been protected and designated as a provincial waterway park. There are 230 undeveloped back-country campsites available in the park along the river. French River continues to attract vacationers and cottage owners who enjoy the clear water, rocky shores and pine growth forests.