What is a Wiki Trail?
Many trails are made so anyone can add to them. You can do this to one of your trails by going to the Trail Summary page and choosing the wiki trail option. This will allow any user to add to the trail. Likewise when you follow a trail that you can add to it will show up in the sidebar with a little pencil marker meaning that you can add to the trail. If you want to contribute to the trail just add it as a favorite, then the next time you mark a page the wiki trail will be in your drop-down list of trail names. Choose it and your mark gets put in the wiki trail.