Moccasin Formation

{{Short description|Geologic formation}}

{{Infobox rockunit

| name = Moccasin Formation

| image = Copper Creek Thrust Fault (Thorn Hill section, northeastern Tennessee, USA) 2.jpg

| caption = Rome Formation over Moccasin Formation (Copper Creek Thrust Fault, Tennessee)

| type = Formation

| age = Ordovician

| prilithology = limestone

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| region = Virginia, Tennessee

| country = United States

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The Moccasin Formation is a geologic formation in Virginia and Tennessee. It preserves fossils dating back to the Ordovician period.