I hate posting locations in which I don't have exact information, but I do know there have been people that have discussed finding Bear Canyon agates (usually banded black and white colors) while hiking around Bear Canyon.  Here are couple of links that talk about it:

http://www.theagateworks.com/bearcanyonagate.htm

http://www.bnhclub.org/forums/showthread.php?p=2051

If you have more specific information please inform.  However keep in mind if it is a good stash then it will be gone if you post it on the web.