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〕 | mouth_name = Bull Run River | mouth_location = Bull Run Reservoir 1 | mouth_district = | mouth_region = Multnomah County | mouth_state = Oregon | mouth_country = | mouth_note = | mouth_lat_d = 45 | mouth_lat_m = 29 | mouth_lat_s = 38 | mouth_lat_NS = N | mouth_long_d = 122 | mouth_long_m = 02 | mouth_long_s = 06 | mouth_long_EW = W | mouth_coordinates_note = 〔 | mouth_elevation_imperial = 1096 | mouth_elevation_note = 〔 | length_imperial = 6 | length_round = 0 | length_note = 〔 Approximate length determined by map scale and ruler.〕 | watershed_imperial = 8.32 | watershed_round = 0 | watershed_note = 〔 | discharge_location = mouth | discharge_round = 0 | discharge_imperial = 72.6 | discharge_note = | discharge_min_imperial = 8.6 | discharge_max_imperial = 9700 | discharge1_location = | discharge1_imperial = | discharge1_note = | map = Bull run river oregon watershed map.png | map_size = 300 | map_caption = Bull Run River watershed | map1 = Oregon Locator Map.PNG | map1_size = 300 | map1_caption = Location of the mouth of the North Fork Bull Run River in Oregon | map1_locator = Oregon | commons = }} The North Fork Bull Run River is a tributary, about long, of the Bull Run River in the U.S. state of Oregon. Part of the system that provides drinking water to the city of Portland, it flows generally south through a protected part of the Mount Hood National Forest in Multnomah County. It joins the Bull Run River at Bull Run Reservoir 1. ==Course== The river, which begins at Palmer Lake, slightly southeast of Palmer Peak, flows south and slightly west through Multnomah County and the Mount Hood National Forest within the Bull Run Watershed Management Unit (BRWMU). It receives an unnamed tributary from the right as it passes through Latourell Prairie. Another unnamed tributary enters from the left just before the North Fork reaches a United States Geological Survey (USGS) stream gauge and enters Bull Run Reservoir 1, which is part of the Bull Run River mainstem. The North Fork has no named tributaries. Its mouth is roughly from the confluence of the Bull Run River with the Sandy River. 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「North Fork Bull Run River」の詳細全文を読む スポンサード リンク
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