This dataset contains spatial and tabular data documenting land cover and surface exposure ages along the Colorado and San Juan Rivers within the backwaters of Lake Powell Reservoir. Data were derived from aerial imagery collected as part of the USDA NAIP Program between 2009-2021, along with topobathymetric elevation data collected from Lake Powell Reservoir. For more information on the data contained here, please see "0-README.txt" within the attached .zip folder.