Visual remains of the Teays River today include large valleys containing only small streams (such as the mile-wide valley from Huntington to St. Albans in West Virginia and the valley extending north from Wheelersburg in Ohio).
The present Ohio-Mississippi river system contains some distinctive relict fish populations descended from Jurassic Period fishes of the Teays, such as the primitive bowfin (Amia calva) and various gars (Lepisosteus spp).