Acting on a tip-off, Kathu District Chief Weera Kerdsirimongkol and a team of district officers and volunteers visited Nangpanturat Mount in Kathu, which is in a forest reserve.
The team found a narrow path leading to two areas where trees had been cut down and most of them sawn into boards.
In the first area the team counted 200 boards, five to eight metres long, which they identified as ironwood and malacca teak, both of which are reserved species.
Around 500 metres away, in the second area, they found seven malacca teak boards and two malacca teak trees that had been cut down.
Mr Weera said it was fortunate the tip-off came when it did because it looked as though the illegal loggers had just about finished sawing the boards and were about to remove them.
The team found no one at the site so the Royal Forestry Department has been alerted to stake out the woods and arrest the culprits.