Obviously, I vote for Barton City though to me the West Branch location suggested by kimmie would be even better. I looked up what I could on line, it would be at Irons Park, seems a nice place. I can't get hold of kimmie to see if she could help with it.
Irons Park (unfortunately, the Irons Park link where I found this info is screwed up and just returns you to the homepage for West Branch)
A Municipal Park located on the West Branch of the Rifle River just S of Houghton Avenue on S Valley & Shrigley Streets. Amenities include: Ft. Austin - a modern playscape, reservable shelters for picnics or weddings, bathroom facilities, tennis & basketball courts. The Rivertrail also runs throughout the park and connects to downtown Victorian West Branch.
http://www.recreationparks.net/MI/ogemaw/irons-park-west-branch
http://www.visitwestbranch.com/
I personally can't justify going to Brethren, for me distance wise it may as well be Lansing, my beat up piece of crap truck won't survive and I can't keep asking 1muttsfan or anyone else to get me there. Maybe Brethren would be find this year and perhaps next year there would be time to research a more central northern location. Even though I live in Barton City I don't consider it or Brethren at all ideal. I do wonder at times if there just aren't enough people up north to bother having one up here. Seems this has turned into more of a "this is what we got, take it or leave it" kind of thing.
WB is closer to a freeway than either of the other locations, and only about a 90 minute drive for me but being this was just the holiday week and I had other obligations I had no time to go check it out or even persuade DH to allow me the use of his vehicle to look. If we are voting today, then so be it.