Clarity on Outpost is quite lacking. It consumes all wood in your inventory? then if you don't have the required wood to build it, if you come back it no longer exists and your wood is gone. Reloading that map chunk does not fix this. It has happened twice to me
The map is a great tool to see what explorations options are available, however the different icons aren't super intuitive.
It would be helpful to have a map legend that explains what the different icons are and if applicable little tooltips that explain how they change.