What national park was advertised as offering all the adversity of hell without the inconveniences.?

Death Valley National Park was famously advertised as offering "all the adversity of hell without the inconveniences." This tongue-in-cheek slogan highlights the extreme conditions of the park, known for its scorching temperatures and harsh landscapes. The phrase emphasizes the unique, challenging environment that attracts adventurous visitors seeking to experience one of the hottest places on Earth.