Go to SFGlenCanyon. net for more information on this. Only one tree was designated as hazardous, and that should have been removed immediately thereafter. Another 14 are dead or dying, and no one is objecting to removing those. That doesn't total 58.
(Also, the article mentions 500 signatures on the petition? There are two nearly-identical petitions there. One has over 600, the other has over *2000*. The link is on the SFForest dot net website, if you want to add yours.)