The Sarygamysh Lake, also Sarykamysh or Sary-Kamysh, is a lake in Central Asia. It is about midway between the Caspian Sea and the Aral Sea. The northern quarter of the lake is in Uzbekistan and the rest Turkmenistan.
Up until the 17th century, the lake was fed by the Uzboy River, a distributary of the Amu Darya River, which continued on to the Caspian Sea. Today, its main source of water is a canal from the Amu Darya but also the runoff water from surrounding irrigated lands, containing high levels of pesticides, herbicides and heavy metals.
Wikipedia https://en.wikipedia.org/wiki/Sarygamysh_Lake
Address Turkmenistan
Coordinates 41°55'54.283" N 57°24'41.178" E