The color change running across the middle of the photo is real and not a product of the way I processed this photo. It shows the high water line reached by flooding from Hurricane Harvey at Brazos Bend State Park in September, 2017. The park had to close for two months due to damage caused by the flood. The water in the photo is Big Creek, which flows into the Brazos River near the southeast corner of the park, and water levels in the Brazos reached their highest mark since the park opened in 1984. When the Brazos floods, water from the river backs up into Big Creek and overflows into the park. The Brazos has flooded three years in a row, causing the park to close for longer than a month every time.