The tree of hormigo is the unique tree del that can be constructed the keys of marimba, national instrument of Guatemala. The Sonorous Forest of the Hormigo frames like green area the Historical Monument of the Relief map, exhibiting a collection of more than 80 trees of hormigo, each dedicated to the Guatemalan marimbista seeded that it with its name enrolled in a plaqueta.
The Sonorous Forest of the Hormigo, recognized by UNESCO like “unique commemorative forest” of the world, in memory of composers and marimbistas, is located in the Eastern part of the facilities of the Relief map, located in the Race course of the North of the city of Guatemala.