What is Marais des Cygnes River?
{{Infobox river | name = Marais des Cygnes River | name_native = | name_native_lang = | name_other = Big Osage River, Brush Creek, Grand River, Old Aunt Mary River<ref name=GNIS/> | name_etymology = <!---------------------- IMAGE & MAP --> | image = | image_size = | image_caption = | map = Osagerivermap.png | map_size = | map_caption = Map of the Osage River watershed including the Marais des Cygnes River | pushpin_map = | pushpin_map_size = | pushpin_map_caption= <!---------------------- LOCATION -->Linn county kansas | subdivision_type1 = Country | subdivision_name1 = [[United States]] | subdivision_type2 = State | subdivision_name2 = [[Kansas]], [[Missouri]] | subdivision_type3 = | subdivision_name3 = | subdivision_type4 = | subdivision_name4 = | subdivision_type5 = | subdivision_name5 = <!---------------------- PHYSICAL CHARACTERISTICS --> | length = {{convert|217|mi|km|abbr=on}} | width_min = | width_avg = | width_max = | depth_min = | depth_avg = | depth_max = | discharge1_location= [[USGS]] 06916600 near [[Kansas]]-[[Missouri]] state line<ref>{{cite web | title = Water-Data Report 2013 - 06916600 Marais des Cygnes River near Kansas-Missouri State Line, KS | publisher = U.S. Geological Survey | url = http://wdr.water.usgs.gov/wy2013/pdfs/06916600.2013.pdf | accessdate = 2015-11-05 | archive-date = 2017-04-29 | archive-url = https://web.archive.org/web/20170429020559/https://wdr.water.usgs.gov/wy2013/pdfs/06916600.2013.pdf | url-status = dead }}</ref> | discharge1_min = {{convert|0|cuft/s|m3/s|abbr=on}} | discharge1_avg = {{convert|2189|cuft/s|m3/s|abbr=on}} | discharge1_max = {{convert|129000|cuft/s|m3/s|abbr=on}} <!---------------------- BASIN FEATURES --> | source1 = | source1_location = | source1_coordinates= | source1_elevation = | source_confluence = | source_conf