This foliage map tells you when to see peak colors across the U.S.

This foliage map tells you when to see peak colors across the U.S.

Since 2013, the tourism site for the Smoky Mountain region has released this interactive map to show travelers when peak fall is projected — county by county — across the contiguous United States. Users can toggle to see when regions should have minimal colors, patchy changes, full force foliage and...