Warm Fork Spring River

{{Short description|Stream in Missouri and Arkansas, U.S.}}

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

{{Infobox river

| name = Warm Fork Spring River

| name_native =

| name_native_lang =

| name_other = Tributary to Spring River

| name_etymology =

| image =

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| map =

| map_size =

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| pushpin_map = Arkansas#USA

| pushpin_map_size =

| pushpin_map_caption= Location of Spring River mouth

| subdivision_type1 = Country

| subdivision_name1 = United States

| subdivision_type2 = State

| subdivision_name2 = Missouri
Arkansas

| subdivision_type3 = County

| subdivision_name3 = Fulton (AR)
Oregon (MO)

| subdivision_type4 = City

| subdivision_name4 = Thayer, MO

| subdivision_type5 =

| subdivision_name5 =

| length = {{convert|19.21|mi|km|abbr=on}}{{cite web |title=ArcGIS Web Application |url=https://epa.maps.arcgis.com/apps/webappviewer/index.html?id=074cfede236341b6a1e03779c2bd0692 |website=epa.maps.arcgis.com |publisher=US EPA |access-date=January 14, 2023}}

| width_min =

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| discharge1_location= Spring River

| discharge1_min =

| discharge1_avg = {{convert|317.46|cuft/s|m3/s|abbr=on}} at mouth with Spring River{{cite web |title=Watershed Report {{!}} Office of Water {{!}} US EPA |url=https://watersgeo.epa.gov/watershedreport/?comid=7559535 |website=watersgeo.epa.gov |publisher=US EPA |access-date=14 January 2023 |language=en}}

| discharge1_max =

| source1 = confluence of Howell Creek and Elk Creek

| source1_location = about 3 miles northeast of Brandsville, Missouri

| source1_coordinates= {{coord|36|40|35.87|N|091|38|59.64|W|display=inline}}{{cite web |title=Geographic Names Information System |url=https://edits.nationalmap.gov/apps/gaz-domestic/public/search/names/10f8252e-59b8-5386-bbf1-4f9cab965efa/summary |website=edits.nationalmap.gov |publisher=US Geological Survey |access-date=14 January 2023}}

| source1_elevation = {{convert|750|ft|abbr=on}}

| mouth = Spring River

| mouth_location = Mammoth Spring, Arkansas

| mouth_coordinates = {{coord|36|29|40.23|N|091|23|9.51|W|display=inline,title}}

| mouth_elevation = {{convert|492|ft|abbr=on}}

| progression = Spring River → Black River → White River → Mississippi River → Gulf of Mexico

| river_system = White River

| basin_size = {{convert|238.04|sqmi}}

| basin_population =

| tributaries_left = Elk Creek
Anthony Branch
Cox Creek

| tributaries_right = Howell Creek
Bay Creek

| bridges = County Road M, unnamed road (x4), Oregon County 327, unnamed road, MO 19, E Adams Street, Warm Fork Road, US 63, W Walnut Street, US 63, unnamed road

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}}

The Warm Fork Spring River is a stream in Oregon County, Missouri, and northern Fulton County, Arkansas, United States.{{GNIS|56060}} The stream begins in western Oregon County at the confluence of Howell Creek and Elk Creek and the stream becomes the Spring River at its confluence with the cold springwaters of Mammoth Spring in northern Fulton County.

The stream was named due to the temperature difference between its waters and the cold springwaters entering from Mammoth Spring.[http://shsmo.org/manuscripts/ramsay/ramsay_oregon.html Oregon County Place Names, 1928–1945, The State Historical Society of Missouri] This is the only stream of this name in the United States.