Critical points for Lake Powell and Lake Mead

These reservoirs, the two largest in the U.S., are at the lowest points since they were filled in 1934 (Lake Mead) and 1963 (Lake Powell).

Table showing minimum power pool elevation and dead pool elevation in Lakes Powell and Mead.

Table: The Conversation, CC BY-ND Source: U.S. Bureau of Reclamation Get the data