Chickaloon Formation

{{Short description|Geologic formation in Alaska, United States}}

{{Infobox rockunit

| name = Chickaloon Formation

| image = Chickaloon Formation Shales, Sandstones, and Coal Beds Syncline Exposed on East Bank of Coal Creek, Leasing Unit Number 14 - NARA - 60030976.jpg

| caption = Chickaloon formation

| type = Formation

| age = Thanetian
~{{fossil range|58|55}}

| period = Thanetian

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| region = Alaska

| country = United States

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File:Stratigraphic Sections of the Chickaloon Formation Exposed at U.S.L.M. Number 1 Kings River Leasing Unit 8 Lower Matanuska Coal Fields - NARA - 60030983.jpg of the Chickaloon Formation]]

File:Stratigraphic Sections of the Chickaloon Formation Exposed on the East Bank of Coal Creek in Leasing Unit Number 14 Lower Matanuska Coal Fields Showing Northern and Southern Arms of a Syncline - NARA - 60030965.jpg ]]

The Chickaloon Formation is a geologic formation in Alaska. It preserves fossils dating back to the Paleogene period.