4703
Historically , Spanish settlers that came to the region found it completely unsuitable to the mining operations that much older settlements in Mexico had to offer as the technology of the age was not yet advanced enough to get at the silver that would later be found in the region .
 location: Mexico
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 location: Mexico