Cool, sounds like we got some good interest. I guess we need to figure out where and when.
I know of one good sized dog town that's probably about a half mile sqaure if my memory serves me well. It's on a ranch about a hour or so SE of Big Sandy, where I used to do some deer hunitng. They are a block management ranch and let me and a few friends shoot some dogs there a few years back. As far as camping, they didn't allow it during hunting season, but they might make an exception for this. One little detail to consider is, this location requires driving about 25 miles on a county road that turns to gumbo in the rain. It would require chains on all four to drive when wet.
Something in the Lewistown - Harlowtown - Roundup area would be most centrally located. It might be hard finding dog towns near camp grounds, so I'm thinking a private location or BLM/State Land.
Apr-May-Jun time frame is probably the best, also the most likely to rain. And spring bear season runs to May 15.
Let's hear some ideas