Rainwater is the primary source of water for many rivers in the Appalachian region.

The rivers in the Appalachian region primarily rely on rainwater as their source. The region’s relatively high rainfall, combined with its mountainous terrain, contributes to the runoff that feeds the many rivers and streams flowing through the Appalachians. While snowmelt does contribute to river flow in some areas, rainwater is the dominant source, replenishing the watersheds throughout the year.