City of Piedras Negras
| Population: | 139,619 | |
| Longitude: | -100.5166667 | |
| Latitude: | 28.7000000 | |
| Elevation: | 222 meter(s) | |
| Time zone: | -6.0 (GMT), -5.0 (DST) | |
| Region: | Coahuila |
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