Madison Campground at Yellowstone National Park, Wyoming, United States. Madison Campground sign.

Madison Campground at Yellowstone National Park, Wyoming, United States. Welcome to Madison Campground.

Madison Campground at Yellowstone National Park, Wyoming, United States.

Madison Campground at Yellowstone National Park, Wyoming, United States.

Madison Campground at Yellowstone National Park, Wyoming, United States.

Madison Campground at Yellowstone National Park, Wyoming, United States.

Madison Campground at Yellowstone National Park, Wyoming, United States.

Madison Campground at Yellowstone National Park, Wyoming, United States.