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The Ecorse River is an 〔U.S. Geological Survey. National Hydrography Dataset high-resolution flowline data. (The National Map ), accessed November 7, 2011〕 river in southern Michigan. Because of its small size, it is often identified as Ecorse Creek. It flows through the Downriver section of Metro Detroit, and is a tributary of the Detroit River. The early French settlers named it the ''Rivière aux Écorces'' ("bark river"). The river was given this name because of a custom, of the local Native American tribe, of wrapping its dead in birch or elm bark, and burying them at the mouth of the river. The river has two branches, which meet at Council Point Park in the city of Lincoln Park, where Pontiac once held a council in 1763 before attacking Fort Detroit. ==Description== The river system consists of a South Branch ( when including the Sexton-Kilfoil Drain) and a North Branch, which combine and run another to the Detroit River.〔 Elevations run from above sea level in the northwest corner of the watershed to at the Detroit River. Over a year, it has a mean flow of per second. The Ecorse River has a watershed of . The north branch drains and has tributaries designated the Trouton Drain, Freeman Drain, Black Creek, and the Douglas and Kelly Drain. The south branch has a drainage area of , and tributaries include the Grams Drain in Southgate and the Brighton, Bondie, and the Sloss and Ganong Drains in Taylor. The rest of the watershed is drained by enclosed underground drains, the largest of which is the La Blanc Drain which enters the north branch about north of the junction of the north and south branches. The La Blanc Drain drains . The north branch flows through Romulus, Dearborn Heights, Allen Park, along a small portion of the southern border of Melvindale, Lincoln Park and then along the border of Lincoln Park and Ecorse. The south branch flows through Romulus, Taylor, Allen Park and Lincoln Park. It is joined by the Sexton and Kilfoil Drain in Taylor. After the two branches join in Lincoln Park, the river flows along the boundary between Ecorse and Wyandotte to its mouth on the Detroit River. A marina occupies both banks of the river at its mouth. The river has a very low gradient and is subject to heavy silting which worsens the seasonal flooding. Much of the watershed contains clay soil deep which limits ground absorption, and 85% of the land in the entire watershed is developed as residential or commercial/industrial which decreases the available land surface for absorption. Homes near the river are required to carry flood insurance, and damaging flooding is a common occurrence. A storm on May 21, 2004, that produced of rain resulted in the river rising over in only three hours. The Ecorse River flows into the Detroit River about midway along that river's course. The next river north of the Ecorse is the Rouge River, while the next river south is the Huron River. The watershed is heavily developed, with a population density of 3,711 people per square mile in 2000. It is also heavily industrialized with both light and heavy industry. Contamination is a problem, both from ongoing industrial and residential sources and as a legacy of the steel works along its lower length. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Ecorse River」の詳細全文を読む スポンサード リンク
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