We have that kind of forest in the lowlands here, two, with trees several hundred feet high. Unfortunately, much of the underbrush and deadfall is so thick that I wouldn't even consider trying to go off-trail in it. Silde alder, devil's club--familiar words to us northwesterners! Poison oak, too! Most of my off-trail navigation has been close to or above timberline, in the Cascades and in the Rockies. Or on the east side of the Cascades where the forests are dryer and therefore more open.