Lake Powell extent polygons at various elevations

These data were compiled to visualize the extent of Lake Powell at various elevation levels. These data represent water surface elevations for Lake Powell at levels...本数据集经汇编，用于可视化鲍威尔湖（Lake Powell）在不同海拔高度下的水域范围。本数据集收录了鲍威尔湖各水位对应的水面海拔数据……