LJ, I'm not sure of your source, but the National Forests and BLM lands are still open for recreation, even though their offices are closed.
"National Forest and BLM lands, he says, "would nearly be impossible to close because there are so many access points. Secondly, those lands are open to a wide range of public activities."
http://www.npr.org/2013/10/03/228719...ands-stay-open
"U.S. Forest Service stations, information offices and programs are closed, but recreation (such as hiking) on the forests remains open. Many of the campgrounds were closed for the season prior to the government shutdown. Many of the other campgrounds that stay open during hunting season are still open, if they are operated by concessionaire. Campgrounds without a gate would remain available for use."
http://www.oregonlive.com/travel/ind...ional_par.html