In 1697, with a military escort from Fronteras (Corodeguachi), he again went to the Casa Grande, this time by way of the San Pedro River.
The last raid of the Apaches on Fronteras was in 1875.
Not so very long ago Fronteras was quite an important place, numbering, it is said, some 2,000 inhabitants.
The above list will hopefully give you a few useful examples demonstrating the appropriate usage of "fronteras" in a variety of sentences. We hope that you will now be able to make sentences using this word.