Terms of use

Lake Level Atlas is an informational experiment published by Alex Ferrari Consulting. It presents measured lake and reservoir levels, source dates and historical context for a fixed set of 100 US lakes.

Observations can be delayed, provisional, missing or revised. The linked source agencies remain the authority for their records. Check the original source before relying on a value. This site does not provide safety, navigation, recreation or dam-operation advice.

You may read and link to the public pages for lawful research and personal use. Do not interfere with the service or misrepresent the published measurements or their sources. Rights in third-party source records remain with their respective providers and are subject to their own terms.

There are no visitor accounts, purchases or user submissions. The operator's private, read-only Search Console connection is used to assess discovery of this site; it does not give visitors a Google sign-in feature. See the privacy policy for its data handling.

For questions, contact alex@thealexferrari.com. Last updated 18 September 2026.