300 meters to the west of the Thai army headquarters (Than Phatcharin) is Lan Hin Taek (Broken Rock Field). Along the path, growing in rock crevices are various plant species, including mosses, ferns and ground orchids.
The crevices, arranged in rough rows. Seem to have come from the earth splitting.
Peering into their depths can be eerie. Some crevices are narrow enough to jump across; other are wider.
From several can be hard loud echoing of running water. The crevices were perhaps important to the communists, as they could have been used for hiding.