Oklahoma has added one week to the gun season, resulting in 16 consecutive days of hunting. Deer biologist Mike Shaw says the largest harvests occur in the northeast. The east-central counties of Osage and Pittsburg yield the most trophy bucks, though western counties like Blaine, Comanche and Washita produce quality bucks, too. Contact: Department of Wildlife Conservation (405-521-4650; www.wildlifedepartment.com).