Steen River impact structure

{{Short description|Impact structure in Alberta}}

{{Infobox terrestrial impact site

| name = Steen River impact structure

| other_name =

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| map = Canada

| map_alt =

| map_caption = Location of the impact structure in Canada

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| coordinates = {{Coord|59|30|N|117|38|W|type:landmark_region:CA|display=inline,title|name=Steen River crater}}

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| confidence = Confirmed

| diameter = {{convert|25|km|mi|abbr=on}}

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| age = 91 ± 7 Ma
Late Cretaceous

| exposed = No

| drilled = Yes

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| country = Canada

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| province =Alberta

| district = Mackenzie County

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}}

Steen River is an impact structure in Alberta, Canada. It is {{convert|25|km|mi|abbr=on}} in diameter and the age is estimated to be 91 ± 7 million years (Late Cretaceous). The structure is not exposed at the surface. The original crater was partially eroded prior to burial, and lies under {{convert|200|m|ft|abbr=on}} of sediments.{{cite Earth Impact DB | name=Steen River | linkname=SteenRiver | access-date=15 September 2019 }}