Introduction - History of the Reflecting Pool The management of large-scale, open-air artificial aquatic ecosystems requires a delicate synthesis of civil engineering, fluid dynamics, and limnology. The Lincoln Memorial Reflecting Pool—often colloquially referred to by visitors as a "Mirror Lake" due to its expansive, shallow, and reflective nature—stands as a premier case study in the complexities of managing such environments. Dedicated in 1922 on the National Mall in Washi