Formation of this region and its lake system is attributed to diverse sedimentary, glacial and tectonic activity.

The lake is located at an elevation of 3,418 metres (11,214 ft) within the districts of Paca, Chunán and Pancán.

The legend of the lake has been further glorified by Dennis Siluk, the Poet Laureate of Peru, with the following verses of a poem.

[5][6][7] Part one I shall tell you a legend of long ago Of the sunken city of La Laguna de Paca, (Where I had met a lingering ghost) Wherein this region of Huancayo-Peru; Truth lies, but only the soul knows.

Part two “The legend goes, of long ago: During the raising of the full moon The mermaid of the La Laguna de Paca, appears And to the nearby town’s folks, she echoes… Echoes, her cries and moans Then when one thinks all is well— The enchanting rings, the rings…!

Part Four And now I tell you of my tale— A tale that took place but a few days ago, By a misty embankment along the Laguna de Paca.