River Derring

The River Derring is a body of water that flows from the Lost Mountains through The Stone Mountains and westward out to the Great Sea. The River Derring bisects Murcia, separating Fair Wood from The Iron Wood. The cities of Halfdan's Summit, Marketsville, Elftown, Greenwood, Redwood, Dewlap, and Derring are on its southern bank, while its northern bank is nearly entirely wilderness. The only bridge over the River Derring leads into Halfdan's Summit.

As the river flows westward, it slowly becomes a brackish water estuary, turning to slow-moving saltwater past the village of Dewlap.