Harkless Formation

{{Short description|Geologic formation in Nevada and California}}

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| name = Harkless Formation

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| type = Formation

| age = Cambrian

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| namedfor = Harkless Flat

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| region = Nevada and California

| country = United States

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The Harkless Formation is a geologic formation in Nevada and California. It preserves fossils dating back to the Cambrian period.

It is named from exposures on a divide south of Harkless Flat in the southern half of the Waucoba Mountain 15-min quadrangle in the Inyo Mountains of central eastern California.{{cite web |url =https://ngmdb.usgs.gov/Geolex/Units/Harkless_15243.html|title =Geologic Unit: Harkless|work =National Geologic Map Database |publisher =U.S. Geological Survey|access-date =23 April 2022}}