Gullies are narrow, steep-sided channels formed by the erosion of soil and rock, typically due to water runoff. They can vary in size and depth, often appearing in areas with loose soil or vegetation that has been removed. Gullies can significantly impact the landscape, leading to soil degradation and affecting local ecosystems. These features are commonly found in hilly or mountainous regions, where heavy rainfall can cause rapid erosion. Over time, gullies can expand and deepen, creating more pronounced valleys. Understanding gullies is essential for managing land and preventing erosion-related issues in agriculture and construction.