Alaskan Thunder Fuck (also referred to as ATF, Matanuska Thunder Fuck or Matanuska Tundra) is a legendary sativa marijuana strain originating in the Matanuska Valley area of Alaska. According to the legend, it was originally a Northern California sativa crossed with a Russian ruderalis, but sometime in the late 70s it was crossed with Afghani genetics to make it heartier (and also making it a hybrid). Alaskan Thunder Fuck usually presents large, beautifully frosted buds with incredibly strong odors of pine, lemon, menthol, and skunk. -leafly.com