Paleocurrent
![Bidirectional wave ripple, Nomgon, Mongolia](/Images/godic/202502/01/WaveRipple2538.JPG")
![Flute cast, showing paleocurrent to the upper right of pic](/Images/godic/202502/01/FluteCast2538.JPG")
![Parting lineation, from lower right to upper left; Kayenta Formation, Canyonlands National Park.](/Images/godic/202502/01/PartingLineation2538.JPG")
A paleocurrent or paleocurrent indicator is a geological feature (typically a sedimentary structure) that helps one determine the direction of flowing water in the geologic past. This is an invaluable tool in the reconstruction of ancient depositional environments.