[1] Los Tres Picachos State Forest was proclaimed and designated in February 16, 1999 through executive order OE-199-10.

This proclamation was made thanks to effort and interest from local residents, the municipal administrations of Ciales and Jayuya, and the Guardianes de la Montaña ecological group.

The most notable geographical feature of the forest reserve is the Tres Picachos mountain which rises to an elevation of 3,176 feet (968 m) above sea level.

The state forest is found in a transition zone between a karstic area and another of volcanic origin.

There is however a single trail that leads to two of the three peaks of Los Tres Picachos mountain summit.