Montello River

{{Infobox river

| name = Montello River

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| pushpin_map = Wisconsin#USA

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| subdivision_type1 = Country

| subdivision_name1 = United States

| subdivision_type2 = State

| subdivision_name2 = Wisconsin

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| source1 = Near Harrisville

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| source1_coordinates= {{coord|43.877324|-89.401393|display=inline}}

| source1_elevation = {{convert|820|ft|abbr=on}}

| mouth = Fox River

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| mouth_coordinates = {{coord|43.7872012|-89.3240081|display=inline,title}}

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| tributaries_left = Klawitter Creek

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The Montello River is a river in central Wisconsin that is a tributary to the Fox River.{{cite web |title=Report for Montello River |url=https://geonames.usgs.gov/apex/f?p=138:3:::NO::P3_FID,P3_TITLE:1569673,Montello%20River |website=USGNIS |publisher=U.S. Department of the Interior |accessdate=6 October 2020}} It starts near Harrisville and flows through Montello. The river is dammed there, where it forms {{convert|341|acre|km2|adj=on}} Lake Montello.{{cite web |title=Lake Montello |url=https://dnr.wi.gov/lakes/lakepages/LakeDetail.aspx?wbic=164300 |website=Wisconsin DNR |accessdate=6 October 2020}}