Basilan topographic maps

Average elevation: 141 ft

Average elevation: 108 ft

Average elevation: 3 ft

Average elevation: 322 ft

Average elevation: 13 ft

Average elevation: 361 ft

Average elevation: 82 ft

Average elevation: 89 ft

The elevation of Isabela to 4th-class city status gave the local government a much-needed boost, efficiently delivered under the Biel administration, revitalized Isabela City, making it an engine of growth for Basilan province even as the hinterlands was wracked by incessant firefights and gun-battles between…

Average elevation: 305 ft

Average elevation: 125 ft

Average elevation: 7 ft

Average elevation: 85 ft

Average elevation: 66 ft

Average elevation: 105 ft

Average elevation: 13 ft

Average elevation: 13 ft

Average elevation: 52 ft

Average elevation: 85 ft

Average elevation: 148 ft

Average elevation: 23 ft

Average elevation: 259 ft

Average elevation: 33 ft

Average elevation: 203 ft

Average elevation: 26 ft

Average elevation: 515 ft

Average elevation: 236 ft