Sadlerochit Group

{{Short description|Geologic group in Alaska}}

{{Infobox rockunit

| name = Sadlerochit Group

| image = Sadlerochit geologic column.png

| caption = Sadlerochit Group, geologic column

| type = Formation

| age = Permian

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| region = Alaska

| country = United States

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The Sadlerochit Group (formerly the Sadlerochit Formation) is a geologic group in Alaska. It is the main source of oil and gas for the Prudhoe Bay Oil Field.{{cite journal |title=Obituary: Robert L. Detterman |journal=Arctic |first=Marvin D. |last=Mangus |year=1991 |volume=44 |issue=2 |page=174 |url=http://www.jstor.org/stable/40511086}} It preserves fossils dating back to the Permian period.{{Citation needed|date=December 2023}}