Can't really help ya there, I live in the Okanagan Where all you have to do is drive around in either the spring or fall when they are pruning and the orchardists will give you all the fruit wood you can carry off. Also there is Mesquite growing just south of here for the taking. However even out there in Central Canada, where there is a girl behind every tree, just not many trees,
you probably can find some Alder down by the creek or river or Mulberry Or maple, or oak or grapevines, or saskatoon berry bushes etc etc et al. Its out there you just have to look for it. I did order some nice chunks from Cabellas once, I can't remember what type I got but it was a nice size and smoked well.
Here's another idea. I bought a lineal foot of an Oak board at the lumber yard, it was in a 2x6 piece. I just put it on the table saw ripped it in two. then took the resulting 2x3's and cut them into 1 inch thick chunks for the smoker. Worked just fine.
There is a hardwood specialty store in town that has a large assortment of different types of woods Including alder , cherry , apple etc. Perhaps there is one near you where you can pick out some good smoking wood.
Check out this sticky for which woods to look for. http://www.smokingmeatforums.com/for...ad.php?t=50439