where is san miguel mexico on map?
Guanajuato Mexico
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 In Mexico , topographical officer George W. Hughes reported to Secretary of State John M. Clayton that a railroad across the isthmus was a “ feasible and practical ” idea . Clayton then instructed Robert P. Letcher , the minister to Mexico , to negotiate a treaty to protect Hargous ' rights . The United States ' proposal gave Mexicans a 20 % discount on shipping , guaranteed Mexican rights in the zone , allowed the United States to send in military if necessary , and gave the United States most @-@ favored @-@ nation status for Mexican cargo fees . This treaty , however , was never finalized . 

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 = = = Zapata in south and central Mexico = = = 

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 San Diego / ˌsæn diːˈeɪɡoʊ / ( Spanish for " Saint Didacus " ) is a major city in California , in San Diego County , on the coast of the Pacific Ocean in Southern California , approximately 120 miles ( 190 km ) south of Los Angeles and immediately adjacent to the border with Mexico . 

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 Mexican authorities became increasingly concerned about the stability of the region . The colonies teetered at the brink of revolt in 1829 , after Mexico abolished slavery . In response , President Anastasio Bustamante implemented the Laws of April 6 , 1830 , which , among other things , prohibited further immigration to Texas from the United States , increased taxes , and reiterated the ban on slavery . Settlers simply circumvented or ignored the laws . By 1834 , an estimated 30 @,@ 000 Anglos lived in Coahuila y Tejas , compared to only 7 @,@ 800 Mexican @-@ born residents . 

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 Calakmul ( / ˌkɑːlɑːkˈmuːl / ; also Kalakmul and other less frequent variants ) is a Maya archaeological site in the Mexican state of Campeche , deep in the jungles of the greater Petén Basin region . It is 35 kilometres ( 22 mi ) from the Guatemalan border . Calakmul was one of the largest and most powerful ancient cities ever uncovered in the Maya lowlands . 
