La Palma - Origins and Geology

Origins and Geology

La Palma, like the other islands of the Canary Island archipelago, is a volcanic ocean island. The volcano rises almost 7 km (4 mi) above the floor of the Atlantic Ocean. There is road access from sea level to the summit at 2,426 m, which is marked by an outcrop of rocks called Los Muchachos ("The Lads"). This is the site of the Roque de los Muchachos Observatory, one of the world's premier astronomical observatories.

La Palma's geography is a result of the volcanic formation of the island. The highest peaks reach over 2,400 m (7,874 ft) above sea level, and the base of the island is located almost 4000 meters below sea level. The northern part of La Palma is dominated by the Caldera de Taburiente, with a width of 9 km (6 mi) and a depth of 1,500 m (4,921 ft). It is surrounded by a ring of mountains ranging from 1,600 m (5,249 ft) to 2,400 m (7,874 ft) in height. Only the deep Barranco de las Angustias ("Canyon of Anxiety") canyon leads into the inner area of the caldera which is a national park. It can be reached only by hiking. The outer slopes are cut by numerous gorges which run from 2,000 m (6,562 ft) down to the sea. Today, only few of these carry water due to the many water tunnels that have been cut into the islands structure.

From the Caldera de Taburiente to the south runs the ridge Cumbre Nueva. The southern part of La Palma is dominated by the Cumbre Vieja, a volcanic ridge formed by numerous volcanic cones built of lava and scoria. The Cumbre Vieja is active - but dormant, with the last eruption occurring in 1971 at the Teneguia vent which is located at the southern end of the Cumbre Vieja - Punta de Fuencaliente, (The Point of the Hot Fountain).

La Palma has abundant plant life (which is the most diverse in the Canary Islands).