[3] It begins at its intersection with PR-135 in Barrio Yayales and ends at Guilarte Forest near Peñuelas municipal limit.

[4][5] The entire route is located in Adjuntas.

Puerto Rico Highway 3131 (PR-3131) is a rural road that branches off from PR-132 in eastern Guayanilla and ends near Sector Malpaso in Peñuelas.

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