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Books about Anasco:
A Gringocua Travels Puerto Rico Anasco by Greg "Froggy" Boudonck (Jun 18, 2012)
Water Resources of the Rio Grande de Anasco- Lower Valley, Puerto Rico (U.S. Geological Survey Water Resources... by Jose Raul Diaz and Donal G. Jordan (1987)
1910/1920 Añasco Mun: PR Federal Census by Allcensus Inc. (Jun 1, 2001)
Wiki information Anasco:
Añasco, named after one of its settlers, Don Luis de Añasco, is a municipality of Puerto Rico located on the west coast of the island bordering the Mona Passage to the west, north of Mayagüez, and Las Marias; south of Rincón, Aguada, and Moca and...
The Rio Grande de Añasco is a river in western Puerto Rico. Its source is in the Cordillera Central mountain range west of Adjuntas, and it flows about 40 miles westwards to its mouth on the Mona Passage 4 miles north of Mayagüez.