The name Tamuín has been spelled in many ways over time: Tamui, Tamuche, Tamuchi, Tam-Ohin, Tamo-Oxxi, Tam-Huinic, Tamuyn, Tamohi, Tamnoc.

Tamuín is bordered on the north by the state of Tamaulipas, on the south by the villages of San Vicente Tancuayalab and Tanlajás, on the east by the municipio of Ébano, and on the west by Ciudad Valles.

This region contains the following lagoons: Los Patitos, Tansey, Brasil, San José del Limón, Palmas Cortadas and Mirador.

Tamuín was the site of the first royal land lease (merced de tierra) in the portion of Huasteca which within the modern day state of San Luis Potosí.

The old magistrate district of the Villa de los Valles was abolished and it was incorporated into the vast intendancy of San Luis Potosí, whose borders extended to Louisiana in the northeast, and Tamuín continued in the administrative status of a simple village (pueblo).

[citation needed] Under the constitution of the newly independent Mexican Republic, promulgated in 1824, the provinces of the former colony were transformed into "free and sovereign states".

In March 1831, the lieutenant colonel of engineers, Francisco Pocelli, sailed up the Pánuco River from Tampico in a steamboat and arrived at Tamuín.

[citation needed] By a decree of 30 June 1845 issued by the Assembly of the Department of San Luis Potosí, the ayuntamiento (municipio government) of Tamuín was transferred to the district of Valles.

Fishing: fisheries include gar, river carp, mojarra, shrimp, and acamaya (local variety of freshwater crayfish).

[citation needed] The municipality of Tamuín encompasses three of the most important sites of the Huastec culture: Tamtok, El Consuelo, and Tzintzin-Lujub.

Situated in a plain within a large bend of the Tampaón River and dominated by two great natural hills which are often at first glance mistaken for pyramids,[citation needed] the site comprises 50 small and medium sized mounds.

It occupies 133 hectares on the banks of the Tamuín River, an hour's drive by highway from Ciudad Valles, San Luis Potosí.

Situated southeast of the city of Tamuín, El Consuelo is accessed by federal highway 70 in the direction of the Gulf port of Tampico.

The village of Tamuín or Tamohí, a word which means "place of effervescence" in Wastek, was built between the 8th and 16th centuries and was depopulated at the time of the Spanish conquest.

By 1946, the investigator Wilfrido Du Solier conducted excavations in El Consuelo ranch and in several buildings and discovered the so called Polychrome Altar.

Archaeological site today known as Agua Nueva, located within the “El Huracán” ranch, property of Celestino Rivera and Claudio Sánchez, 18.7 kilometers from the highway between Tamuín and San Vicente Tancuayalab.