Studying bark was an idea that came while hiking and we didn't have any guide book with us. We just compared each bark and plan on returning to do more detailed study later. Here are pictures to show you the different textures of bark we found.
This is one of my favourites. It has such cool shapes on it.
This one is cool too. It looks like paper.
It looks like some of these are the same kind of tree, but with age they look slightly different.