Where to get aspen from in bulk

[MarkS]

I am spending more money in Aspen then I am feed. Right now I am getting it at petsmart. $12 for 2 cubic feet that expands to 4 cubic feet.

Anyone have any ideas on where I can get it cheaper????

I get 50lb bales at Mills Fleet Farm for $5.00 a piece. They sell it as horse bedding. I use it for my rodents.