Definition of "timbered"

His steps were imperceptibly led almost in a circle; nor did he observe that he was on the verge of a tract of land heavily timbered, but not with pine-trees.

1846, Nathaniel Hawthorne, “Roger Malvin's Burial”, in Mosses from an Old Manse

It [the Platte River] is destitute of timber along its banks, but there are here and there islands which are well timbered.

1861, E. J. Guerin, Mountain Charley, page 29

The booking hall is lofty and of peculiar design, the roof being carried on timbered beams set in pairs rising from carved corbels.

1946 September and October, D. J. Rowett, “Stamford L.N.E.R.”, in Railway Magazine, page 283