So, you're halfway through the transect and you've forded the stream and scrambled up a steep slope and you're finally on a little flat (and dry) spot and you think that everything is going to be a little easier for a while - and then you see that the transect line goes straight over a treefall and that the tree is the size of a railroad car. Gulp. [NOTE: The crew hopped right over the treefall; I walked around it].