What is Piedras Negras, Coahuila?
{{Infobox settlement <!--See the Table at Infobox Settlement for all fields and descriptions of usage--> <!-- Basic info ---------------->| name = Piedras Negras, Coahuila | other_name = | native_name = <!-- for cities whose native name is not in English --> | nickname = The Safe Border! | settlement_type = [[City]] | motto = <!-- images and maps -----------> | image_skyline = Santuario de Nuestra Señora de Guadalupe, Piedras Negras, Coahuila- Nuestra Señora de Guadalupe sanctuary (22760886300).jpg | image_caption = Church of Our Lady of Guadalupe | image_flag = | flag_size = | image_seal = Escudo Piedras Negras.jpg | seal_size = | image_shield = | shield_size = | image_map = | map_caption = | pushpin_map = | pushpin_map_caption = | pushpin_mapsize = <!-- Location ------------------> | subdivision_type = Country | subdivision_name = Mexico | subdivision_type1 = [[States of Mexico|State]] | subdivision_name1 = [[Coahuila]] | subdivision_type2 = [[Municipalities of Guerrero|Municipality]] | subdivision_name2 = [[Piedras Negras Municipality|Piedras Negras]] <!-- Politics ----------------->| government_footnotes = | government_type = | leader_title = Mayor | leader_name = [[Claudio Mario Bres]] (Partido Morena) | leader_title1 = <!-- for places with, say, both a mayor and a city manager --> | leader_name1 = | established_title = Established | established_date = June 15, 1850 | established_title2 = <!-- Incorporated (town) --> | established_date2 = | established_title3 = <!-- Incorporated (city) --> | established_date3 = <!-- Area ---------------------> | area_footnotes = | area_total_km2 = 914