NamyldzhylakhThe Namyldzhylakh is a river in Yakutia, Russia. It is the longest tributary of the Markha, of the Lena basin. Its length is and its drainage basin area.CourseThe Namyldzhylakh is a right tributary of the Markha. It has its origin in the Lena Plateau. In its upper reaches it heads approximately to the southeast. After it bends eastwards, it stays roughly in that direction all along its course. In its middle course the river meanders strongly within a floodplain containing 90 lakes. Finally it meets the right bank of the Markha from its mouth in the Lena.TributariesThe largest tributaries of the Namyldzhylakh are the long Boruu, the long Toyon-Uyalaakh and the long Tuoydakh from the left. The river basin is fed by rain and snow. The river freezes in the last half of October and stays under ice until mid May.