Many of them are waterfalls. “Approximately 200 waterfalls grace the landscape of Yellowstone National Park. The most well-known are the Lower and Upper Falls of the Yellowstone River. The park's tallest waterfall, the Lower Falls plunges 308 feet, while just upstream, the Upper Falls drops 109 feet. Tower Creek plummets 132 feet over Tower Falls, while Cascade Creek tumbles nearly 130 feet over Crystal Falls in three separate segments.” (Traveltips.Usatoday)
Mountain ranges that go through Yellowstone. “Four mountain ranges crisscross Yellowstone National Park: the Absaroka Range, Gallatin Range, Red Mountains and Washburn Range. The volcanic Absaroka Range cuts through the northeastern part of Yellowstone, while the Gallatin Range slices through the park's northwestern section. The Red Mountains and Washburn Range lie entirely within Yellowstone's borders. Additionally, the Continental Divide passes through Yellowstone, separating rivers flowing toward the Atlantic from those flowing toward the Pacific.”