Huasteca Nahuatl

Huasteca Nahuatl is a Nahuan language spoken by over a million people in the region of La Huasteca in Mexico, centered in the states of Hidalgo (Eastern) and San Luis Potosí (Western).
"Ethnologue" divides Huasteca Nahuatl into three languages: Eastern, Central, and Western, as they judge that separate literature is required, but notes that there is 85% mutual intelligibility between Eastern and Western. Half of Eastern speakers know no Spanish.
XEANT-AM radio broadcasts in Huasteca Nahuatl.
Demographics.
Huasteca Nahuatl is spoken in the following municipalities in the states of Hidalgo, Veracruz, and San Luis Potosí.
Phonology.
The following description is that of Eastern Huasteca.
Orthography.
Huasteca Nahuatl currently has several proposed orthographies, most prominent among them those of the Instituto de Docencia e Investigación Etnológica de Zacatecas (IDIEZ), Mexican government publications, and the Summer Institute of Linguistics (SIL).
Sample text: 'a book about my location.'