While on a delivery in the panhandle of Florida, this morning, I was traveling on Hwy 2 going west out of Graceville, Florida. When I crossed the Big Choctawhatchee River bridge, all the trees on the west side of the river were in fall colors....oranges, yellows, reds, browns....yet the trees on the east side of the river were in spring green colors.....and they appeared to be the same kinds of trees on both sides. If I had not been pushed for time and had not been pulling a trailer, I would have pulled over and took some pics of this phenomenon.