This is Mount Pinatubo, an active stratovolcano located ... that have since been buried by pyroclastic flows and subsequent lahar. The off-road drive along the O'Donnell River covers about 20 ...

Other than lives, homes, farms and other properties, what also vanished in the aftermath of Mt. Pinatubo’s June 15, 1991 eruption and series of lahar flows until 1997 was an old kind of pastry.