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| source_length_imperial = | source_lat_d = 45 | source_lat_m = 09 | source_lat_s = 56 | source_lat_NS = N | source_long_d = 119 | source_long_m = 20 | source_long_s = 29 | source_long_EW = W | source_coordinates_note = 〔 | mouth_name = Columbia River | mouth_location = upstream of Arlington | mouth_district = | mouth_region = Gilliam County | mouth_state = Oregon | mouth_country = | mouth_note = | mouth_lat_d = 45 | mouth_lat_m = 48 | mouth_lat_s = 21 | mouth_lat_NS = N | mouth_long_d = 120 | mouth_long_m = 00 | mouth_long_s = 24 | mouth_long_EW = W | mouth_coordinates_note = 〔 | mouth_elevation_imperial = 269 | mouth_elevation_note = 〔 | length_imperial = 79 | length_round = 0 | length_note = | watershed_imperial = 880 | watershed_round = 0 | watershed_note = 〔〔 | discharge_location = river mile 4 (river kilometer 6) | discharge_round = 1 | discharge_imperial = 31.3 | discharge_note = 〔The average discharge rate was calculated by adding the average annual discharge rates for the total number of water years for which data was available and dividing by the total number of water years.〕〔(【引用サイトリンク】publisher=United States Geological Survey )〕 | discharge_max_imperial = 16900 | discharge_max_note = (January 14, 1974)〔(【引用サイトリンク】publisher=United States Geological Survey )〕 | discharge_min_imperial = 0 | discharge_min_note = (Often)〔(【引用サイトリンク】publisher=United States Geological Survey )〕 | discharge1_location = | discharge1_imperial = | discharge1_note = | map = Oregon Locator Map.PNG | map_size = 300 | map_caption = Location of the mouth of Willow Creek in Oregon | map_alt = | map_locator = Oregon | map1 = Willow Creek Watershed.png | map1_size = 300 | map1_caption = The Willow Creek watershed | map1_alt = | commons = }} Willow Creek is a long tributary of the Columbia River, located in the U.S. state of Oregon. It drains of Morrow and Gilliam counties. Arising in the Blue Mountains, it flows generally northwest to its confluence with the Columbia River upstream of Arlington. ==Course== Willow Creek's headwaters are located near Arbuckle Mountain in the Blue Mountains, southeast of Heppner. It flows north, then west, receiving the North Fork on the right and Skinners Fork on the left. Willow Creek Lake is formed by the tall Willow Creek Dam just upstream of Heppner at river mile (RM) 52.4, or river kilometer (RK) 84.3.〔 Willow Creek flows northwest through Heppner, receiving Hinton Creek on the right. About later, the creek travels through Lexington. Soon after, Rhea Creek enters on the left, and Willow Creek passes through the communities of Ione and Morgan. Turning north, it crosses into Gilliam County, flowing beneath Highway 74 and Interstate 84/Highway 30 just before its mouth.〔 Willow Creek flows into the Columbia River approximately above its confluence with the Pacific Ocean.〔〔 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「Willow Creek (Columbia River)」の詳細全文を読む スポンサード リンク
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