LUCENA CITY, QUEZON, Philippines — Environmentalist group Tanggol Kalikasan (TK) on Tuesday revealed that illegal quarrying was back on the slopes of Mt. Banahaw in Sariaya town in Quezon province.

LUCENA CITY—The historic Alitao River in Tayabas City, flowing from the foot of Mount Banahaw, has been declared a “critical watershed” by three villages to protect it from destructive ...