Based on your description, you are most likely a glacier. Glaciers are massive bodies of ice that form from the accumulation and compaction of snow over thousands of years. They are capable of moving rocks, boulders, and reshaping the Earth's surface through erosion, transportation, and deposition. Glacial movement occurs due to the force of gravity and the gradual flow of ice downhill. Glaciers move very slowly, often just a few centimeters or meters per day, but their slow but powerful movement causes significant changes to the landscape over time.