Meanings of carte timber in английском

How did he come to be in the depths of the forest, on a track used for nothing but carting timber?

At night when she was asleep she dreamed of perfect mountains of planks and boards, and long strings of wagons, carting timber somewhere far away.

'Serious wounds of this description are also met with in animals engaged in carting timber from plantations in which brushwood has recently been cut down.