MARTÍN INFIERNO CAVERN
This important natural site is a cavern of enormous dimensions, whose initial formation dates back to the Pliocene Pleistocene. It is found in the upper part of Río Hondo, which drains its waters towards the southern coast. This is part of the northern slope of the Guamuaya mountain massif, in the municipality of Cumanayagua.
The cavern features the tallest stalagmite in Cuba and one of the largest in the world, according to the Speleologic Society of Cuba who carried out the measurement, its official height is 67,2 m.
It has a very large inclined cavity, with five great halls of vast proportions, that together with the rest of the galleries, sum up a linear total of 793 m and an off-level of 190 m.
Inside one can find the only “gypsum flowers” ("flores de yeso") reported in Cuban territory. They measure over 30 cm, and resemble a helicoidal or rolled up shape giving the impression of a flower. Also reported is the presence of another mineral rarity, that is formed by microcrystalline calcite known as "moon milk".
This is a site of infinite scientific discovery for learning about the evolution of the territory, due to the characteristics of the deposits that are found inside, as well as the evidence of endangered fauna such as the tocororo, the sijú owl and the Cuban kites and mountain hawks.
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