Prompt
"Generate a realistic image of a massive concrete gravity dam, specifically the Grand Coulee Dam, situated on the Columbia River in Washington, United States. The dam should be depicted with its characteristic curved shape and a large reservoir in the background, Franklin D. Roosevelt Lake. Include the dam's surroundings, such as the river and nearby landscape. The image should convey a sense of grandeur and industrial achievement, reflecting the dam's status as a National Historic Landmark and a significant source of hydroelectric power."