I really appreciate all the trees, but my two favorite along this part of the river at river birch (Betula nigra) and sycamore (Platanus occidentalis). Sycamores usually stand out in a crowd, due to a combination of size, shape, foliage color and texture, and especially the color and texture of the bark. The bark has a general white appearance with patches of tan and gray, some of which can be seen to be exfoliating. Their distinctiveness probably make them favorites for nailing up signs, like the second one below telling me that I only have 66.5 miles of the Chattahoochee left. (These are Corps of Engineers signs telling tugboat captains where they are on the river.