So I was reading this article:
http://cooltoknow.net/Home_and_Garde...Alder%2C_Birch
It says that you can tap Bigleaf maples (the kind that grow out in western Canada and NW states), as well as Alder and Birch (which I have also never heard of). It sounds cool, and I would like to try it. Does anyone have any experience with this?