Morro de Arica, Cultural landmark on coastal cliff in Arica, Chile.

Morro de Arica is a coastal hill rising about 139 meters above sea level at the southern edge of Arica's urban area, in Chile's Arica y Parinacota Region. It drops steeply toward the Pacific and slopes more gently eastward. Its summit holds a plaza with monuments, a war museum, and a balcony.

In 1880, Chilean troops captured this rock from the Peruvian defenders during the Saltpeter War. This military action marked the capture of the city of Arica by Chile and shifted the border to the north.

The name "morro" is simply Spanish for a rounded coastal hill, not an Aymara term. On the summit, the Mirador de la Virgen del Carmen, raised in 1910, holds the remains of soldiers killed in the 1880 battle, and the Museo Histórico y de Armas, opened in 1974, displays the history of the combat.

Paved paths and an asphalt road lead to the summit, where a small military history museum has been set up. From the top, you have a clear view of the city, the port, and the coastline to the north and south.

The large flag on the summit serves as a navigation point for shipping entering the port. It is considered the largest of its kind in the country and is visible from a great distance.