He blends in with the stump pretty well. Maybe he is not called a stump or tree lizard because he is much easier to see when on a fence?
Appalachian Trail, Brush Mt. Wilderness, Jefferson National Forest
About 7 inches long and fairly dark compared to other other I've seen.
The eastern fence lizard (Sceloporus undulatus) is a medium-sized species of lizard found along forest edges, rock piles, and rotting logs or stumps in the eastern United States. It is sometimes referred to as the prairie lizard, fence swift, gray lizard, or pine lizard.