Map of Louisiana highlighting Saint Helena Parish

St. Helena Parish contains the only meteorite impact crater reported from 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. 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.

• http://en.wikipedia.org/wiki/Saint Helena Parish, Louisiana