species, such as sturgeon, and the dams tend to be built on the higher gradient portions of the river, which are the most critical river habitats for fish spawning. History saakiiweesiipiiwi (Outlet River, also historically spelt Sakiwasipi), as it was called by the Miami people, was inhabited for thousands of years by various indigenous tribes as it served an essential trade avenue in the Great Lakes region. The most recent indigenous inhabitants of the area were the Miami and Potawatomi peoples. Two different portages allowed nearly continuous travel by canoe among different watersheds of the region. The first major transfer point was at the headwaters in southwestern Michigan, where travelers could make a portage to the St. Joseph River of the Maumee River watershed, which drained into Lake Erie. The second major transfer point was at South Bend, Indiana, where a short portage to the nearby Kankakee River allowed access to the Illinois River and subsequently to the Mississippi. Another major access point along river was at Niles, Michigan, where the Old Sauk Trail, a major east-west Indian trail, crossed the river. The indigenous trade and navigation networks in the area allowed for extensive trade and movement of people, which allowed early Europeans access to the area in 1675 when Père Jacques Marquette was guided up the Mississippi River via the Illinois River, then to the Kankakee River and portaged to Sakiwasipi and then down to Lake Michigan. On November 1, 1679 René Robert Cavelier, Sieur de La Salle sailed southeast across Lake Michigan and built Fort Miami at the mouth of the river. La Salle named the river La Rivière des Miamis (River of the Miamis). At the end of 1679, La Salle followed indigenous trade routes in the opposite direction of that taken by Marquette; heading up the St. Joseph River and portaging to the Kankakee River, getting as far west on the Illinois River as modern-day Peoria, Illinois, before returning to Fort Miami. After giving up on the return of his ship, Le Griffon, in April 1680, he became the first European to walk the well traveled indigenous routes east across the Lower Peninsula of Michigan back to the Detroit River and Canada. The French established Fort St. Joseph at the crossroads of Old Sauk Trail and this well-established east–west trail in 1691. The watershed was later used as canoe route by early French fur trappers in