Marshall Sandstone

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{{Use dmy dates|date=May 2020}}

{{Infobox rockunit

| name = Marshall Sandstone

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| type = Formation

| age = Mississippian

| period = Mississippian

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| region = {{Flag|Michigan}}

| country = {{Flag|United States}}

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| underlies = Michigan Formation

| overlies = Coldwater Shale

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The Marshall Sandstone is a geologic formation in Michigan. It preserves fossils dating back to the Mississippian period.

File:SPHSP bedrock outcrop 01.jpg of Marshall Sandstone at Sanilac Petroglyphs Historic State Park]]

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