Voice in the Wilderness Ministries is located in Cd. Valles, Mexico. The city of Valles is the third-largest city in the Mexican state of San Luis Potosí. The city had a 2005 census population of 116,261, while the municipality’s population was 156,859. It is located 350 miles south of McAllen and Brownsville, Texas, and 100 miles inland from Tampico, Mexico.
Cd. Valles is called the gateway of the Huasteca. The Huasteca is a cultural region located in the northeast of Mexico, including parts of the states of Tamaulipas, Veracruz, Puebla, Hidalgo, San Luis Potosí, Querétaro and Guanajuato. Cd. Valles itself is located in the Huasteca Potosina, or the portion of the Huasteca within the state of San Luis Potosí. This whole region of Mexico, made up of a largely indigenous population, remains deeply rooted in spiritism and the occult - belief systems which go back into early pre-Spanish times. In more modern history it has also become steeped in a very dark form of Roman Catholicism with deep seated idolatry and the worship of the Virgin Guadalupe and saints overlaying spiritism, demonism, and witchcraft, as well as a weight of spiritual discouragement and oppression.
It was specifically to this city in Mexico that God called Steven Frey and Dr. Carl Heinlein to minister. Their call and arrival happened in a rather miraculous way, and was undeniably of God.
The vision of Voice in the Wilderness Ministries is to work with the national church in Mexico, and never to attempt to usurp authority or control. It is our strong belief that whenever possible our place as missionaries is to work “along side” the indigenous church which God has already set into motion and not to attempt to grab for control or authority in any way.