Brushy Creek Crater St. Helena Parish contains the only identified meteorite impact crater in the state of Louisiana. This suspected impact crater is a roughly circular depression about 1.2 miles/2 km in diameter. Shocked quartz and intensely fractured quartz have been recovered from fractured and possibly altered sediments comprising its rim. Its age is estimated to be between 11 and 30 ka. It lies about 5.8 miles/9.3 kilometers southwest of Greensburg, in the southwest corner of the parish. Louisiana Highway 37 cuts through the northern edge of this feature.Heinrich, P.V. (2003) Possible Meteorite Impact Crater in St. Helena Parish, Louisiana. Search and Discovery Article. no. 50006. American Association of Petroleum Geologist, Tulsa, Oklahoma. Retrieved March 27, 2011.Heinrich, P.V. (2003) Origin of a Circular Depression and Associated Fractured and Shocked Quartz, St. Helena Parish, LA. Transactions of the Gulf Association of Geological Societies. vol. 53, pp. 313-322.LGS Researcher Featured in Meteor Crater News Story. Center for Energy Studies, Louisiana State University Baton Rouge. Retrieved March 27, 2011.
brushy creek crater st helena parish contains the only identified meteorite impact crater in the state of louisiana this suspected impact crater is a roughly circular depression about 12 miles/2 km in diameter shocked quartz and intensely fractured quartz have been recovered from fractured and possibly altered sediments comprising its rim its age is estimated to be between 11 and 30 ka it lies about 58 miles/93 kilometers southwest of greensburg in the southwest corner of the parish louisiana highway 37 cuts through the northern edge of this featureheinrich pv (2003) possible meteorite impact crater in st helena parish louisiana search and discovery article no 50006 american association of petroleum geologist tulsa oklahoma retrieved march 27 2011heinrich pv (2003) origin of a circular depression and associated fractured and shocked quartz st helena parish la transactions of the gulf association of geological societies vol 53 pp 313-322lgs researcher featured in meteor crater news story center for energy studies louisiana state university baton rouge retrieved march 27 2011