From Mountain States Legal Foundation:

An Idaho woman who is barred from carrying a functional firearm for self-defense when she visits federal recreational facilities prevailed today with the ruling of an Idaho federal district court that the federal government ban on firearms violates the Second Amendment.  Elizabeth E. Morris of Nez Perce County is licensed to carry a concealed weapon, regularly carries a concealed weapon, and often seeks to recreate on lands managed by the U.S. Army Corps of Engineers.  Because Corps of Engineers regulations ban functional firearms, even while camped in tents, Ms. Morris is subject to criminal prosecution if she attempts to exercise her Second Amendment rights.  Alan C. Baker, a firearms instructor and a resident of Idaho’s Latah County, is a co-plaintiff in the suit, which was filed in August 2013 in Idaho federal district court.  The Corps of Engineers did not respond to requests from attorneys for Ms. Morris and Mr. Baker, Mountain States Legal Foundation (MSLF), seeking an exemption from its firearm ban, a ban that has not changed since the landmarkHeller ruling.