St. Regis River (Montana)

{{Short description|River in Montana}}

{{More citations needed|date=January 2022}}

{{Infobox river

| name = Saint Regis River

| image = StRegisRiverMT.jpg

| image_size =

| image_alt =

| image_caption = The St. Regis River near its mouth

| map =

| map_size =

| map_alt =

| map_caption =

| source1_location =

| source1_coordinates= {{coord|47|25|33|N|115|45|02|W|name=Saint Regis River}}

| source1_coord_ref =

| mouth_location =

| mouth_coordinates = {{coord|47|17|48|N|115|05|25|W|name=Saint Regis River|display=inline,title}}

| mouth_coord_ref ={{cite gnis |id= 789958 |name=Saint Regis River}}

| subdivision_type1 = Country

| subdivision_name1 = Mineral County, Montana

| progression =

| length = {{convert|32.5|mi|km|abbr=on}}

| source1_elevation =

| mouth_elevation = {{convert|2631|ft|m|abbr=on}}

| discharge1_avg =

| basin_size = {{convert|330|mi2|km2|abbr=on}}

| river_system = Columbia River

| tributaries_left =

| tributaries_right =

}}

The St. Regis River is an approximately {{convert|32.5|mi|km|adj=on}} tributary of the Clark Fork of the Columbia River in Montana in the United States. It begins at Lookout Pass on the Idaho/Montana border, flowing east and ends at the confluence with the Clark Fork in the town of St. Regis.Google maps Its drainage is {{convert|330|sqmi|km2}}. The record high flow for the St. Regis River in Montana was recorded on May 19, 1954 at 11,000 cubic feet per second according to USGS gaging data.