Off-roaders, environmentalists vie for canyon near Death Valley By GILLIAN FLACCUS,12/18/06 00:52:32 Whoever named Surprise Canyon got it right. Mere miles from bone-dry Death Valley, the canyon cradles two unexpected jewels within its soaring, whitewashed walls: a gushing mountain stream and what's left of a once-bustling silver mining town. These treasures have attracted visitors going back decades - and now they're at the heart of a legal battle between two modern foes, off-road drivers and environmentalists. Five years ago environmentalists successfully sued to get the narrow canyon and its spring-fed waterfalls closed to vehicles. In response, more than 80 off-roaders...