A glen is a narrow valley, often characterized by its scenic beauty and lush vegetation. Typically found in hilly or mountainous regions, glens are formed by the erosion of land over time, creating a distinct landscape. They can vary in size and may contain streams or rivers that flow through them, contributing to the area's ecosystem. Glens are commonly associated with regions like Scotland, where they are an integral part of the natural scenery. These valleys often serve as habitats for various wildlife and are popular destinations for outdoor activities such as hiking and photography, attracting nature enthusiasts and tourists alike.