Antisana Volcano is an active stratovolcano located in the Andes of Ecuador. It stands at approximately 5,758 meters (18,874 feet) and is the fourth highest volcano in the country. The volcano is part of the Antisana Ecological Reserve, which is home to diverse wildlife and unique ecosystems. The last significant eruption of Antisana occurred in the late 18th century, around 1773. The volcano is known for its glacial cover, which contributes to the region's hydrology. Nearby, the Antisana Ecological Reserve offers opportunities for hiking and wildlife observation, attracting nature enthusiasts and researchers alike.