Yellowstone’s relief is the result of tectonic activity (volcanism and earthquakes) combined with the erosional actions of ice and water. Most of the park consists of broad volcanic plateaus with an average elevation of about 7,875 feet (2,400 meters). Three mountain ranges, each aligned roughly north to south, protrude into the park: the Gallatin Range in the northwest, the Absaroka Range in the east, and the northern extremity of the Teton Range along the park’s southwestern boundary. The tallest mountains in the park are in the Absarokas, where many summits exceed elevations of 10,000 feet (3,050 meters). The range’s Eagle Peak, on the park’s boundary in the southeast, is the high point, reaching 11,358 feet (3,462 meters). Aside from its rugged mountains and spectacular deep glacier-carved valleys, the park has unusual geologic features, including fossil forests, eroded basaltic lava flows, a black obsidian (volcanic glass) mountain, and odd erosional forms.

黄石的起伏地形是构造活动（火山活动和地震）与冰和水的侵蚀作用相结合的结果。公园的大部分区域由宽阔的火山高原组成，平均海拔约为7,875英尺（2,400米）。有三条山脉大致呈南北走向，向公园内延伸：西北部的加拉丁山脉，阿布萨罗卡山脉位于东部，以及特顿山脉的北部末端，沿着公园的西南部边界。公园内最高的山峰位于阿布萨罗卡山脉，许多山峰的海拔超过10,000英尺（3,050米）。该山脉的鹰峰，位于公园东南边界，是最高点，海拔11,358英尺（3,462米）。除了崎岖的山脉和壮观的深谷冰川侵蚀谷外，该公园还拥有独特的地理特征，包括化石森林、侵蚀的玄武岩熔岩流、一座黑曜石（火山玻璃）山峰以及奇特的侵蚀地貌。