Not easy to get to, but well worth the hike. Once you reach the cliff base and warm up with the awesome 5.9's Popular Mechanics and Ace of Spades, follow the cliff further uphill to your right for about 150 meters. You will arrive at Soviet Union. The crack is shaped like a left-facing sickle (hence the name) and starts in a small left-facing corner capped by a roof. The thin crack above is cruxy, and the rest of the flake is quite easy. Bolted anchor on top.