Prompt
"Generate an image of a serene and untouched river landscape, with a free-flowing river winding its way through a scenic valley, surrounded by lush greenery and majestic mountains in the background. In the foreground, a small wooden sign with a plaque reading 'National Wild and Scenic River' can be seen. The image should evoke a sense of natural beauty and tranquility, while also conveying a sense of protection and conservation. The style should be photorealistic, with muted earth tones and soft lighting. The image should represent the National Wild and Scenic Rivers System, a government agency dedicated to preserving and protecting America's most remarkable rivers."