Piedras Negras is a district of the Mora canton, in the San José province of Costa Rica.

[1][2] Piedras Negras has an area of 14.84 km2[3] and an elevation of 505 metres.

[1] For the 2011 census, Piedras Negras had a population of 379 inhabitants.

[6] The district is covered by the following road routes: This Costa Rican location article is a stub.

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