|Primary outflows||Yahara River|
|Basin countries||Upper Yahara, Yaxarhayut|
|Max. length||313.23 km|
|Max. width||198.02 km|
|Surface area||40823.82 km2|
|Average depth||182 m|
|Max. depth||412 m|
|Water volume||7429.94 km3|
|Residence time||63 years|
|Shore length1||1149.47 km|
|Settlements||Terenarth, Duchy of Terenarth |
Yerverg, Duchy of Yerverg
|1 Shore length is not a well-defined measure.|
Lake Vyaungodenhara (/ˈvjaʊ̯ŋgoʊ̯dɛnˌhaɹə/; Yaharan: Vøngödënhärä /ˈvʲɑʊ̯ŋgodɛnˌɦɑɹɑ/) is the largest lake in Lower Boroso. It is split almost equally between Upper Yahara and Yaxarhayut, and drains into the Yahara River at the city of Terenarth in Yaxarhayut. Vyaungodenhara is the eighth largest lake on Sahar by surface area.
The name Vøngödënhärä is derived from the Yaharan words vø, meaning "lake", the combining infix -n-, gödë, a corruption of the word ärgöd, meaning "in abundance", -n- again, and härä, meaning "land".
Lake Vyaungodenhara has a surface area of 40824 km2, a maximum length of 313 km, and a maximum width of 198 km. Lake Vyaungodenhara has an average depth of 182 m, and a maximum depth of 412 m. It contains 7430 km3 of water, and has a shoreline of some 1150 km, excluding islands.
Lake Vyaungodenhara is an important facet of Yaharan shipping, and is the sole link between the nation of Upper Yahara and the Yahara River, by which Upper Yaharan shipping is able to reach to east coast of Boroso and the Arimizziya Sea. Due to ice, Lake Vyaungodenhara is closed to shipping during the later winter months, though also dependant on weather conditions which may break the ice. Most shipping is done through the ports of Yerverg and Terenarth. Shipping most often originates or ends through Yerverg, from whence goods are transferred onto the railways and disseminated through Upper Yahara.