Wright Valley (Paperback)

High Quality Content by WIKIPEDIA articles! The Wright Valley is the central one of the three large Dry Valleys in the Transantarctic Mountains, located west of McMurdo Sound at approximately 77 10 S 161 50 E / 77.167 S 161.833 E / -77.167; 161.833. Wright Valley contains the Onyx River, the largest river in Antarctica, Lake Brownworth, the origin of Onyx River, and Lake Vanda, that is fed by Onyx River. Its southwestern branch South Fork is the location of Don Juan Pond. The upland area known as the Labyrinth is at the valley's west end.