Ocotillo Formation

{{Short description|Geologic formation in the Colorado Desert of Southern California, United States}}

{{Infobox rockunit

| name = Ocotillo Formation

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| type = Geologic formation

| period = Pliocene

| age =Pliocene

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| namedfor =Ocotillo, California

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| region = Colorado Desert, California

| country = United States

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| underlies = Palm Spring Formation

| overlies = Brawley Formation

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The Ocotillo Formation is a Pliocene fluvial-alluvial fan geologic formation in the Colorado Desert of Southern California.[https://web.archive.org/web/20040116070346/http://www2.nature.nps.gov/geology/paleontology/pub/fossil_conference_6/remeika.htm National Park Service: "The FISH CREEK CANYON ICHNOFAUNA: a PLIOCENE (BLANCAN) Vertebrate Footprint Assemblage from Anza-Borrego Desert State Park, California"]; by Paul Remeika.

It occurs in western Imperial County and eastern San Diego County.{{cite journal |last1=Kirby |first1=S. M. |last2=Janecke |first2=S. U. |last3= Dorsey |first3=R. J. |last4=Housen |first4=B. A. |last5=Langenheim |first5=V. E. |last6=McDougall |first6=K. A. |last7=Steely |first7=A. N. |date=January 2007 |title=Pleistocene Brawley and Ocotillo Formations: Evidence for Initial Strike-Slip Deformation along the San Felipe and San Jacinto Fault Zones, Southern California |url=http://cedar.wwu.edu/cgi/viewcontent.cgi?article=1011&context=geology_facpubs |journal=The Journal of Geology |volume=115 |issue=1 |pages=43–62 |jstor=509248 | doi = 10.1086/509248 |bibcode=2007JG....115...43K|s2cid=128487198 |url-access=subscription }}