[1] San Nicolas (named after the patron saint) it is a municipality where the founding date is ignored, until the year 1977 when two states were settled.

[clarification needed] It is located in the southern state of Oaxaca, with coordinates of 16°26'N latitude and 96°45'W longitude at an altitude of 1,460 meters (4,790 ft) above sea level.

The predominant flora consists of numerous species of valuable timber trees such as yegareche, red, strawberry, yegalan, sumac, black, oak, fig, juniper and vanilla.

There are also many medicinal plants such as Artemisia ludoviciana, aloe vera, eucalyptus, Condea verticillata, sagebrush, barge, horehound, mustard, Dichondra, rue, Tessaria, mint and chamomile.

According to the 2005 population and housing census, only three people living in the municipality speak an indigenous language.