I accidentally created a worm farm of sorts and now I want to preserve it.  Basically I had a trash bag of stuff that I had raked out of our dog yard sitting near the fence for most of the summer.  We've been doing a bunch of construction this summer and I just forgot about it.  Now we're doing cleanup and I went to pick this bag up and found that it was full of fat juicy earthworms and there were a whole bunch more underneath it.  Apparently there was a hole in the bottom and a lovely environment for worms was created.  The spot is actually really good for any kind of structure or whatever that I would need to build around it to keep them going.
Any ideas?
			
			Any ideas?