| 词条 | Gilahina River |
| 释义 |
Gilahina River is a waterway in the U.S. state of Alaska in the Wrangell–St. Elias National Park and Preserve. The stream rises in mountains {{convert|6000|-|7000|feet}} high between Lakina River on the east and Kuskulana River on the west. It is about {{convert|12|miles}} long and joins the Chitina River {{convert|9|miles}} below the Lakina. Three miles from the Chitina, it forks. The west branch, which is called the Chokosna, drains an area of {{convert|50|sqmi}} and is nearly as large as the main stream above the forks. The upper {{convert|6|miles}} of the Gilahina in its course through the mountains has a grade of about {{convert|150|feet}} per mile. As it approaches the Chitina Valley, the grade increases, and for the lower {{convert|6|miles}}, the average grade is about {{convert|200|feet}} per mile. There are no glaciers in the basin, and at normal stages, the water is clear and free from sediment. The valley floor is made up of gravel, boulders, sand, and clay, and at high stages, the stream transports considerable material, causing marked changes in the channel.[1] See also
References
1. ^{{cite book|last1=Ellsworth|first1=Clarence Eugene|last2=Davenport|first2=Royal William|last3=Hoyt|first3=John Clayton|title=A water-power reconnaissance in south-central Alaska|url=https://books.google.com/books?id=FBIKAAAAIAAJ&pg=PA61|edition=Public domain|year=1915|publisher=Government Printing Office|pages=61–}} {{coord|61.3725|-143.7800|display=title}} 3 : Rivers of Alaska|Rivers of Valdez–Cordova Census Area, Alaska|Rivers of Unorganized Borough, Alaska |
| 随便看 |
|
开放百科全书收录14589846条英语、德语、日语等多语种百科知识，基本涵盖了大多数领域的百科知识，是一部内容自由、开放的电子版国际百科全书。