Viñales is a small town and municipality in the north-central Pinar del Río Province of Cuba. The municipality is dominated by low mountain ranges of the Cordillera de Guaniguanico such as Sierra de los Órganos. Typical outcrops known as mogotes complete the karstic character of the landscape. Mogotes are generally, isolated steep-sided residual hills, which are composed of either limestone, marble, or dolomite and surrounded by nearly flat alluvial plains. These hills typically have a rounded, tower-like form.