(71 days) Open-pollinated. Bred to withstand the rigors of the mountainous northern Idaho climate and ripen before first frost despite summer nighttime temperatures that averaged 43°. Blacktail Mountain is the earliest variety among the hardiest, best adapted to a variety of conditions, and even stores after harvest as long as any. 8–12 lb. Fruits are dark green, almost black, with faint stripes, flesh is orange-red with pleasing texture, very sweet, juicy and crunchy.