The record for length, as would be expected, turned out to Kolyma. From the confluence of Ayan-Yuryakh and Kullu to the East Siberian Sea has come to lie 2129 kilometers! The largest influx of Kolyma Omolon not inferior to many European rivers: the length of 1114 kilometers (the length of the Rhine - 1320 kilometers of the Seine - 780 kilometers, the Thames - 334 km). A second after the length of the Kolyma and Magadan river basin area Anadyr has a length of 1150 kilometers. It is much shorter than the rivers flowing into the Sea of ??Okhotsk - their length does not exceed 200-350 kilometers (numerous as the Kamchatka River and it is shorter in length rarely exceeds 100-150 kilometers).