A ravine is a deep, narrow valley formed by the erosion of land, often by a river or stream. These geological features can be found in various landscapes and are characterized by steep sides and a floor that may contain water or vegetation. Ravines can vary in size and depth, and they often serve as natural drainage channels. Ravines are important for ecosystems, providing habitats for various plants and animals. They can also influence local weather patterns and water flow. In some cases, ravines are popular for recreational activities such as hiking and birdwatching, attracting nature enthusiasts to explore their unique environments.