Prompt
"Generate a realistic image of Hells Canyon, a vast and deep valley located in the western United States, specifically in Oregon, Idaho, and Washington, formed by the Snake River. The image should showcase the canyon's breathtaking landscape, with the Seven Devils Mountains in the background and the Imnaha River or Snake River flowing through it. Include a few hikers or rafters in the scene to give a sense of scale. The style should be photorealistic, with vivid colors and detailed textures, capturing the semi-arid climate and granite geology of the area. The image should be taken from a scenic viewpoint, such as Hells Canyon Overlook, during a sunny day with a few clouds."