Back to the original question asked by the OP. It will take time to see how and through what means you may try to have a voice. First you have to wait for the Board, or commission to be formed. Having been to 30 or 40 public meetings or hearings in similar situations, to include being asked to show older maps and testify as to approximate dates etc. to where I've utilized those roads. When you watch how the process works you quickly learn it's money that does all the talking, and the only way you might be heard is through getting one of the larger organizations that dominate these processes to hear you. I've attended many meetings on this area over the years, with the initial push being for what they called the greater Canyonlands National monument. You might find it interesting to research how that process evolved to becoming the Bears Ears National Monument.
From what I've seen to date, organizations that you might get your voice heard through are SUWA or the Sierra club which are closely linked on this. They are by far the most well funded group involved, and are pretty much driving the bus. As a RV user the group involved most likely to take any input regarding boondocking etc is the Blue Ribbon Coalition. For the most part their voice is barely a squeak however as they don't have the mulita million dollar budgets, or political clout.
Finally, for those that do boondock, please clean up after yourself as much as possible, and remember minimal impact. For a couple of years now there have been folks taking pictures, and documenting the damage done by RVers to include the damage from driving off road, trash, dumping of grey, and even sometimes black tanks etc. It's pretty hard to argue against closing an area to protect it when folks are indeed tearing up the land.
