After reading the article, I wished that they had mentioned Friends of Dumont Dunes (FoDD) but all they mentioned about saving the dunes and helping with the fight was to join CORVA and ASA.
It was a pretty cool article though. It described the way Dumont was back in the day. There was no entrance road whatsoever, climbing to the top of the plateau was a huge challenge and usually required a 4WD get up, there were no signs coming in from the highway, etc.