By Brady McCombs, The Arizona Daily Star, Tucson May 31--BUENOS AIRES NATIONAL WILDLIFE REFUGE -- A spider web of more than 1,500 linear miles of foot trails slices through this refuge's semidesert grasslands that are home to deer, javelinas and gray hawks in the Altar Valley, southwest of Tucson.

By James Gilbert, The Sun, Yuma, Ariz. Jul. 8--A national conservation organization is upset over the recent killing of a mountain lion north of the Kofa National Wildlife Refuge.

By Haider Rizvi* - Tierramrica NEW YORK, Sep. 15, 2006 (IPS/GIN) -- Despite strong objections from environmental groups, the U.S. government wants to allow off- road vehicles in protected areas of sand dunes in the southern California desert.

By Andrew Silva, San Bernardino County Sun, Calif. Aug.

By Chuck Mueller, San Bernardino County Sun, Calif. Aug. 13--If a proposed 15-foot-tall triple barrier is built between the United States and Mexico, illegal immigrants may have to take a tip from "The Odyssey" to get across.