South Fork Salmon River (Oregon)

{{Use American English|date=February 2025}}

{{Infobox river

| name = South Fork Salmon River

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| map_size = 300

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| pushpin_map = USA Oregon

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| pushpin_map_caption= Location of the mouth of the South Fork Salmon River in Oregon

| subdivision_type1 = Country

| subdivision_name1 = United States

| subdivision_type2 = State

| subdivision_name2 = Oregon

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| subdivision_type4 = County

| subdivision_name4 = Clackamas

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| source1 = Cascade Range

| source1_location = near Salmon Mountain, Salmon–Huckleberry Wilderness

| source1_coordinates= {{coord|45|13|13|N|121|58|56|W|display=inline}}{{cite web | work = Geographic Names Information System (GNIS) | publisher = United States Geological Survey | date = November 28, 1980 | url ={{Gnis3|1150008}} | title = South Fork Salmon River|accessdate=January 1, 2016}}

| source1_elevation = {{convert|3622|ft|abbr=on}}Source elevation derived from Google Earth search using GNIS source coordinates.

| mouth = Salmon River

| mouth_location = near Green Canyon Campground, Mount Hood National Forest

| mouth_coordinates = {{coord|45|16|19|N|121|56|18|W|display=inline,title}}

| mouth_elevation = {{convert|1624|ft|abbr=on}}

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The South Fork Salmon River is a tributary of the Salmon River in Clackamas County in the U.S. state of Oregon. Arising near Plaza Lake, it flows generally northeast along the east side of Salmon Mountain to meet the Salmon {{convert|11|mi|km}} upstream of the larger stream's confluence with the Sandy River at Brightwood.{{cite web|title=United States Topographic Map|publisher=United States Geological Survey|via=Acme Mapper|url=http://mapper.acme.com/?ll=45.271944,-121.938333&z=12&t=T&marker0=45.271944,-121.938333|accessdate=January 1, 2016}}

The entire South Fork lies within the Salmon-Huckleberry Wilderness, which is part of Mount Hood National Forest. The South Fork's only named tributary is Mack Hall Creek, which enters from the right.

Green Canyon Campground, about {{convert|4|mi|km|0}} by road from Wemme, is along the Salmon River about a mile downstream of the mouth of the South Fork. Open from late May to late September, the campground has sites for tents and recreational vehicles (RV)s, picnic tables, and access to hiking trails and trout fishing.{{cite web|title=Green Canyon Campground|publisher=National Forest Service|url=http://www.fs.usda.gov/recarea/mthood/recreation/recarea/?recid=53386|accessdate=January 1, 2016}}