Nevado Del Ruiz is a stratovolcano located in the Andes mountains of Colombia. It stands at an elevation of 5,321 meters (17,457 feet) and is part of the Los Nevados National Natural Park. The volcano is known for its snow-capped peak and is a popular destination for hikers and nature enthusiasts. The volcano has a history of eruptions, with the most significant event occurring in 1985. This eruption triggered a massive lahar, or volcanic mudflow, that devastated the nearby town of Armero, resulting in thousands of casualties. Today, Nevado Del Ruiz is closely monitored for volcanic activity to ensure the safety of surrounding communities.