Course
While most sources indicate the river rises as the outflow of Green Lake at 44°35′31″N 85°47′40″W / 44.59194°N 85.79444°W / 44.59194; -85.79444 in southwestern Grand Traverse County, some consider it navigable immediately south of US-31 from Tuller's Lake to Green Lake. Green Lake straddles the boundary between Grant Township on the south and Green Lake Township on the north between Karlin and Interlochen. Several nearby lakes, including Duck Lake and its tributaries, drain into Green Lake.
The river winds southwesterly from Green Lake into eastern Benzie County, and then briefly into northern Manistee County before turning northerly back into Benzie County. A dam on the river forms Homestead Pond, after which is flows mostly west and slightly north to Lake Michigan.
Read more about this topic: Betsie River