CEMENTery

Millions of years ago, a cluster of coral reefs stood firm here as the water receded, leaving them surrounded by the marshy, mangrove-studded Mekong Delta.

Today, these reefs have been carved by the wind and rain into spiky limestone cliffs known as karsts that stand stark against the Cambodian landscape, even as the lowland rain forest around them has been denuded by centuries of intensive rice cultivation and logging.

Soon, they will be gone.

Photography: © Omar Havana for The New York Times. All Rights are Reserved

Intro by Julia Wallace for The New York Times

This story was done while on assignment for The New York Times