Lake Mead is generally considered a mesotrophic to eutrophic lake, rather than oligotrophic. Oligotrophic lakes are characterized by low nutrient levels and high oxygen content, typically supporting fewer aquatic plants and animals. In contrast, Lake Mead has experienced fluctuations in nutrient levels due to factors like runoff and water management practices, leading to increased productivity in some areas. Therefore, it does not fit the criteria for being classified as oligotrophic.
Found it. Its oligotrophic.
eutrotrophic
Lake Mead is the largest reservoir in the United States
The Colorado River feeds Lake Mead.
Add nutrients (phosphorus, nitrogen, etc.)
Lake Mead's area is 158,720 acres.
Elwood Mead the II
Lake Mead was formed by the building of the Hoover Dam.
Lake Mead is the largest, followed by Lake Powell.
Lake Vostok is the best, example this lake lies beneath the Antarctic and has been isolated for some 15 million years
Lake Mead was established as the Boulder Dam Recreation Area in 1936.
In Mojave County Arizona and Clark County Nevada.