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The Chama River, a major tributary river of the Rio Grande, is located in the U.S. states of Colorado and New Mexico. The river is about long altogether. From its source to El Vado Dam its length is about , from El Vado Dam to Abiquiu Dam is about , and from Abiquiu Dam to the mouth of the Rio Grande is about .〔Calculated in Google Earth〕 The name "Chama" is a shortened version of the Tewa term ''(ǫŋwįkeyi )'', meaning "wrestling pueblo-ruin".〔The namesake pueblo ruin is at 〕 ==Course== The Rio Chama originates in south-central Colorado, just above the New Mexico border in the San Juan Mountains and Rio Grande National Forest. The main stem Rio Chama begins at the confluence of two short headwater tributaries called West Fork and East Fork. The West Fork flows eastward from the Continental Divide. Across the divide lies the Navajo River, one of the headwater tributaries of the Colorado River. The East Fork extends a few miles into Conejos County, Colorado to a source near one of the headwater tributaries of the Conejos River. The confluence of the forks lies just within Archuleta County, Colorado. From there the Rio Chama flows generally south. After a few miles the river enters Rio Arriba County, New Mexico, and flows by the town of Chama. The tributary Willow Creek joins the Rio Chama after being impounded as Heron Lake by Heron Dam. Willow Creek flows from the dam about to the Rio Chama. A couple miles below that the Rio Chama flows into El Vado Lake, a reservoir created by El Vado Dam.〔General course info from USGS topographic maps〕 From El Vado Dam the Rio Chama continues flowing south, entering Chama Canyon and Santa Fe National Forest and the Chama River Canyon Wilderness. It is joined by Rio Cebolla from the east, then Rio Gallina from the west. Then the river enters Abiquiu Lake, the reservoir created by Abiquiu Dam. The tributary Rio Puerco joins the Rio Chama in Abiquiu Lake.〔 Below Abiquiu Dam the Rio Chama flows generally east, skirting the edge of Carson National Forest. It flows by the town of Abiquiú, located at the mouth of Abiquiu Creek, after which it turns to flow generally southeast. Near the villages of Chili and La Chuachia the Rio Chama is joined by two of its primary tributaries. The Rio del Oso joins from the west then, within less than a mile, the Rio Ojo Caliente joins from the northeast. From there the Rio Chama flows several miles southeast to join the Rio Grande near Ohkay Owingeh, about north of the city of Espanola and approximately north of Santa Fe.〔 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「Chama River (Rio Grande)」の詳細全文を読む スポンサード リンク
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