MAMMOTH HOT SPRINGS, Wyoming — Federal judge Mark Carman steps cautiously out of the federal courthouse. He’s worried about where a 700-pound elk with a wicked looking set of antlers has gone.

The bull spent the morning herding its harem of cows around the parking area in front of the courthouse, forcing tourists and security guides alike to duck behind cars or into buildings as the wild animal stalked the area. A few days earlier, the same bull attacked a tourist about 100 yards away when the man failed to get out of the animal’s way during the fall mating season known as the rut.

“He’s a beaut,”…