Teotlalpan

[16] It is said to begin at the end of Otompan, the altepeme as Huehuetoca, Coyotepec, Zitlaltepec, Itzcuincuitlapillan, Hueypoxtla, Tzompanco, Xilotzinco, Tequixquiac, Tetlapanaloya, Apazco, Ajoloapan, Zacacalco, Tetzontlalpan, Tolcayohcan, Tizayohcan, Tetzontepec, Cempoalan, Pachuca, Coscotitlan, Nopalapa, Nopancalco, Epazoyohcan and spread across arid valley now known as Mezquital Valley to places as Tepexi, Chantepec, Atotonilco, Tlachcoapan,[17] Atitalaquia, Tetepanco, Tolnacuxtla, Tecama, Chilcuautla, Tepatepec, Mizquiahuala, Ixmiquilpan, Zimapan, Nopala, Tecozautla, Actopan, Chapantongo and all region bordering the mythical city of Tula.

are commissioned by the Spanish crown to develop a description of the territory, first from the clerical order with Archbishop Alonso de Montufar in 1570, who compiled from his friars the "Descripción del Arzobizpado de México" (see references below), then under the ordinance of King Philip II to develop the "Geographic relations" (Relaciones Geográficas) 1579 (some written in 1580 and 1582, the last until 1583), in both documents resorted to create the notion of "comarcas" (Term of use not clear during the 16th century) to designate small jurisdictions that showed some relationship (no historical support, rather was a criterion of neighborhood or proximity).

Thus, in the absence of a better term, they used by simple logic the word Teotlalpan to demarcate indigenous towns inside north of the Valley of Mexico that showed more insulation populations and a drier environment.

[18] In the early twentieth century Francisco del Paso y Troncoso republished the "Relaciones geográficas" he guess in his personal point of view (and actually without any analysis) that Teotlalpan existed as a well-constituted province.

No one Indigenous document draw the demarcation of a region or province called Teotlalpan, just as there is no record of armed uprisings of the peoples from north of the central lakes, its population either by trade agreement or quick submission, they produced huge amounts of quicklime and textile fibers since Teotihuacan times.

Inscription inside of San Nicolás Tolentino monastery , about the curatos (parishes).
Region of Old Teotlalpan.
Main towns in the north of the Valley of Mexico in pre-Hispanic times. With triangles, the headers of the tributary provinces are represented, with circles the dependents; Metztitlán (with rhombus) was an independent state (tlahtohcayotl) of the Excan Tlahtoloyan .