a debris flow, or debris flow. A huayco is caused by the violent fall of water, which drags mud, stones, trees and anything else in its path. Its origin may be due to an intense rainfall or the overflowing of a river or lagoon at high altitudes.

The town of Lo Barnechea was created in the 19th century. So far, it has resisted conurbation with Greater Santiago.

The DFL 1-3260 of 9 March 1981 established the new commune of Lo Barnechea, from a subdivision of the commune of Las Condes;

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