Lake Black Cow () is located in Iran, with an area of . The lake is situated in a topographic setting distinguished by the prevalence of elevated plains and mountainous terrain."The twin lake of "Black Cow" is the height of wonder while being unknown". Mehr news agency News of Iran and the world Mehr News Agency (Persian). March 29, 2010. Originally published on 2020-08-09. Informed on 2020-08-09.

Lake Black Cow is divided into two distinct bodies of water due to the presence of a narrow passageway measuring in length, in width, and in depth. This passageway serves as a conduit for the connection between the two lakes."Twin Black Cow Lake; an aquarium full of fish". www.yjc.ir. My original comment on 2016-06-14. Archived on 2020-08-11.

The initial lake is oval in shape. The depth of this section of the lake is relatively shallow."Twin Black Lake of Abdanan Cow - Showing the content of special productions - Ilam Radio and Television". ilam.irib.ir. Archived from original review on 2020-08-09. Informed on 2020-08-09.

The primary factor contributing to the transparency of the lake's water is the substantial absorption of mercury, which has a significant impact on the lake's transparency. The initial lake's clear and fresh water flows into the subsequent one."Twin Lake "Black Cow" in Abdanan; Ilam Natural Aquarium". Mehr news agency News of Iran and the world Mehr News Agency (Persian). March 27, 2017. Originally published on 2018-12-13. Archived on 2020-08-10.

Etymology Additionally, the lake is designated as "Lake Black Waters," a moniker derived from the profound darkness of its water. The lake was designated the "Lake Black Cow" due to its visual resemblance to a cow's horn.

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