| 词条 | Delta River |
| 释义 |
| name = Delta River | name_native = | name_native_lang = | name_other = | name_etymology = | image = Delta River AK.jpg | image_caption = Delta River | image_size = 300 | map = | map_size = 300 | map_caption = | pushpin_map = USA Alaska | pushpin_map_size = 300 | pushpin_map_caption= Location of the mouth of the Delta River in Alaska | subdivision_type1 = Country | subdivision_name1 = United States | subdivision_type2 = State | subdivision_name2 = Alaska | subdivision_type3 = | subdivision_name3 = | subdivision_type4 = Census Area | subdivision_name4 = Valdez–Cordova, Southeast Fairbanks | subdivision_type5 = | subdivision_name5 = | length = {{convert|80|mi|km|abbr=on}}[1] | width_min = | width_avg = | width_max = | depth_min = | depth_avg = | depth_max = | discharge1_location= | discharge1_min = | discharge1_avg = | discharge1_max = | source1 = Tangle Lakes | source1_location = Amphitheater Mountains, Alaska Range, Valdez–Cordova Census Area | source1_coordinates= {{coord|63|09|14|N|145|56|54|W|display=inline}}[1] | source1_elevation = {{convert|2823|ft|abbr=on}}[1] | mouth = Tanana River | mouth_location = Big Delta, Southeast Fairbanks Census Area | mouth_coordinates = {{coord|64|09|19|N|145|51|35|W|display=inline,title}}[2] | mouth_elevation = {{convert|984|ft|abbr=on}}[2] | progression = | river_system = | basin_size = | tributaries_left = | tributaries_right = | custom_label = | custom_data = | extra = {{Designation list | embed = yes | designation1 = nwsr | designation1_type = Wild, Scenic, Recreational | designation1_date = December 2, 1980 | designation1_number = }} }} The Delta River is an {{convert|80|mi|km|adj=on}} tributary of the Tanana River in the U.S. state of Alaska.[2] Its name in the Ahtna language is Saas Na’ {{Pronunciation-needed}}. Fed by the Tangle Lakes of the Alaska Range, the river flows north to meet the larger river near Big Delta.[3] In 1980, {{convert|62|mi|km}} of waterways in the Delta River basin, including all of the Tangle Lakes and the main stem to within {{convert|0.5|mi|km|1}} of Black Rapids became part of the National Wild and Scenic Rivers System. Of this, {{convert|20|mi|km}} are designated "wild", {{convert|24|mi|km}} "scenic", and {{convert|18|mi|km}} "recreational".[4] BoatingEasily accessible from the boat launch at the Tangle Lakes campground near the Denali Highway and at many points downstream along the Richardson Highway, the river can be floated in sections that vary in difficulty from Class I (easy) to Class V (extremely difficult) on the International Scale of River Difficulty and may require portages. The upstream stretches include four lakes and their Class II (medium) connecting channels. About {{convert|2|mi|km|0}} downstream of the last lake, the river enters a canyon and flows over unrunnable waterfalls. A {{convert|0.5|mi|km|0|adj=on}} portage leads to a {{convert|2|mi|km|0|adj=on}} stretch of Class III (difficult) rapids.[5] Below the Class III rapids, the river continues through {{convert|29|mi|km}} of Class I and II water before entering a {{convert|20|mi|km|adj=on}} stretch between Ann Creek and One Mile Creek known as Black Rapids. Here the difficulty is Class III rising to Class IV (very difficult) or V, followed by {{convert|30|mi|km}} of Class III and then {{convert|18|mi|km}} of Class I.[5] Author Karen Jettmar warns of dangers including "sweepers, canoe fragments wrapped around rocks, bears, cold and wet weather, and high winds". She says that "only experts should attempt to run Black Rapids (Class IV–V) below Mile 229 on Richardson Highway."[5] FishingThe Tangle Lakes complex, {{convert|24|mi|km}} long, that feeds the Delta River has "some of the best road-accessible grayling fishing in Interior Alaska".[6] In the deeper lakes of the system, lake trout are fairly abundant. Lakes and streams that are away from the highway and accessible only by canoe or trail are the least heavily fished. Arctic grayling fishing is also considered excellent on the upper river down to its confluence with Eureka Creek.[6] See also
References1. ^Derived by entering source coordinates in Google Earth. 2. ^1 2 3 4 {{cite web | work = Geographic Names Information System| publisher = United States Geological Survey | date = March 31, 1981| url = {{gnis3|1401105}} | title =Delta River| accessdate = October 26, 2013}} 3. ^{{cite book|title=Alaska Atlas & Gazetteer|publisher=DeLorme|location=Yarmouth, Maine|pages=96, 106, 116|edition=7th|year=2010|isbn=978-0-89933-289-5}} 4. ^{{cite web|title=Delta River, Alaska|url=http://www.rivers.gov/rivers/delta.php|publisher=National Wild and Scenic Rivers|accessdate=October 27, 2013}} 5. ^1 2 {{cite book|last=Jettmar|first=Karen|title=The Alaska River Guide: Canoeing, Kayaking, and Rafting in the Last Frontier|publisher=Menasha Ridge Press|location=Birmingham, Alabama|edition=3rd|year=2008|origyear=1993|pages=111–13|isbn=978-0-89732-957-6}} 6. ^1 {{cite book|last=Limeres|first=Rene|author2=Pedersen, Gunnar|title=Alaska Fishing: The Ultimate Angler's Guide|edition=3rd|publisher=Publishers Design Group|location=Roseville, California|year=2005|pages=275–76|isbn=1-929170-11-4|display-authors=etal}} External links
7 : Rivers of Alaska|Alaska Range|Rivers of Southeast Fairbanks Census Area, Alaska|Rivers of Valdez–Cordova Census Area, Alaska|Wild and Scenic Rivers of the United States|Tributaries of the Yukon River|Rivers of Unorganized Borough, Alaska |
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