Sorry, I haven't been on here for a while. I was part of the clubs inception but got out over a year ago. A bunch of us are looking to revive it some since it has basically dead now, but are mostly building up the nebraska4x4.org site that I see you already found.
We have some private land that we go to once in awhile. I will let you know the next time we go down, but it most likely won't be until it warms up or unless there is a big snowfall.