Check out this link, read through the plan, and send your comments. We need to work together to keep land open for use. It won't take care of itself, we need to act a one to stop the likes of SUWA and Sierra Club from closing our trails.
If I see a prewritten letter, I will post it up. In the mean time, take a moment to read and respond to the proposed plan.
Here is a link to the NPS official site.