The Sierra del Rosario Biosphere Reserve is a protected area located in western Cuba. Established in 1984, it covers approximately 1,200 square kilometers and is recognized for its rich biodiversity and unique ecosystems. The reserve is home to various species of flora and fauna, some of which are endemic to the region. This biosphere reserve is part of the UNESCO Man and the Biosphere Programme, highlighting its importance for conservation and sustainable development. The area features lush forests, mountainous terrain, and numerous rivers, making it a vital habitat for wildlife and a significant site for ecological research and tourism.