1. The western part is mountainous, part of the Sierra de Monte Alto . 2. Stylistically, the monuments are very similar to those of Kaminaljuyu and Monte Alto . 3. Pazzanese was born in Bar�o de Monte Alto , Minas Gerais, Brazil. 4. Tamaulipas probably means " Montes Altos " ( high hills ). 5. These mountains here are known at the Sierra de Monte Alto . 6. There are some lagoons such as the Monte Alto , Portezuela and Albufera Salinitas. 7. Perhaps the earliest observatory documented in Mesoamerica is that of the Monte Alto culture. 8. "' Bar�o de Monte Alto "'is a Brazilian municipality located in the state of Minas Gerais. 9. During the Late Preclassic ( 400 BC to AD 200 ), Monte Alto became a regional center. 10. To this end was a broken area of 1854 square kilometers of the city of Palmas de Monte Alto .