Prompt
                                        
                                            "Generate a serene and majestic image of a mountain lake, specifically Helen Lake, situated in the breathtaking Glacier National Park, Montana, USA. The lake should be depicted in a realistic style, surrounded by lush greenery and towering mountains, with a few wispy clouds reflected in its calm waters. The Belly River should be visible flowing out of the lake. Capture the tranquility and natural beauty of this high-altitude lake, with an elevation of 4970 ft, and dimensions of approximately 1.25 miles in length and 0.25 miles in width."