- Between Adjuntas and Jayuya1
- Between Arecibo and Utuado2
- Between Cayey and Salinas1
- Big Tree Trail to Rio La Mima, Sierra de Luquillo3
- Bo. Rucio, Penuelas1
- Bridge at km 20.6, Morovis-Corozal road1
- Bridge at km 28.4, Rio Grande-Mameyes road1
- CCC Camp "Buena Vista," Maricao; insular forest, S. of Maricao1
- CCC Camp Buena Vista, Maricao Insular Forest1
- CCC Trail #1, Maricao Insular Forest1
- CCC trail #4 from Maricao Insular Forest north to Maricao1
- Cantera Rexach, Martin Peña3
- Caribbean National Forest, Luquillo Division, El Yunque Reacreation Area, trail from Mt Britton to summit ot El Yunque1
- Caribbean National Forest, Toro Negro Division, Rd 143 at Km 202
- Caribbian National Forest, Luquillo Division, summit and upper slopes of Pico de Este1
- Catalina - Yunque Trail, Sierra de Luquilla1
- Catalina - Yunque Trail, Sierra de Luquillo1
- Catalina Yunque trail, El Yunque range, Sierra de Luquillo2
- Catalina-Yunque trail, Sierra de Luquillo1
- Cayey1