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〕 | mouth_name = Clackamas River | mouth_location = | mouth_district = | mouth_region = | mouth_state = | mouth_note = | mouth_lat_d = 45 | mouth_lat_m = 09 | mouth_lat_s = 29 | mouth_lat_NS = N | mouth_long_d = 122 | mouth_long_m = 07 | mouth_long_s = 02 | mouth_long_EW = W | mouth_coordinates_note = 〔 | mouth_elevation_imperial = 955 | mouth_elevation_note = 〔 | length_imperial = 13.7 | length_round = 0 | length_note = 〔(【引用サイトリンク】url=http://www.rivers.gov/rivers/roaring.php )〕 | watershed_imperial = 44 | watershed_round = 0 | watershed_note = 〔 | discharge_location = | discharge_round = 0 | discharge_imperial = 170 | discharge_note = | discharge_max_imperial = | discharge_min_imperial = | discharge1_location = | discharge1_imperial = | discharge1_note = | map = | map_size = | map_caption = | map1 = Oregon Locator Map.PNG | map1_size = 300 | map1_caption = Location of the mouth of the Roaring River in Oregon | map1_locator = Oregon | commons = }} Roaring River is a tributary of the Clackamas River in Clackamas County in the U.S. state of Oregon. Beginning near Signal Buttes on the western flank of the Cascade Range, the river flows generally west through parts of Mount Hood National Forest to meet the larger river from its mouth on the Willamette River. The river's watershed generally overlaps the Roaring River Wilderness, a federally protected area established in 2009. The area is off-limits to commercial logging and mechanized recreation though still open to fishing, camping, hunting, hiking, and many other activities. The entire length of Roaring River was named part of the National Wild and Scenic Rivers System in 1988. Most of this was declared "wild", though the last two-tenths of a mile were designated "recreational".〔 Named tributaries, in downstream order from source to mouth, are Cougar Creek, which enters from the left; Splintercat Creek, from the left; Squaw Creek, from the right, and South Fork Roaring River, from the left.〔 Whitewater enthusiasts sometimes run the lowermost of the river, taking forest roads and a hiking trail to the put-in point and taking out at the bridge carrying Oregon Route 224 over the river near Roaring River Campground. This run is rated Class IV (advanced), on the International Scale of River Difficulty. Dangers include ledges, boulders, and shifting wood hazards that require scouting and multiple portages. ==See also== * List of National Wild and Scenic Rivers * List of rivers of Oregon 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「Roaring River (Clackamas River)」の詳細全文を読む スポンサード リンク
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