This chart is dynamically updated. This page reads data from a government archive of water heights for Lake Mohave from its first filling to the present, and draws the chart on that basis. The database, located at https://www.usbr.gov/uc/water/hydrodata/, is updated once per month. This page's graphic updates itself in step with the data source, over time giving an easy-to-interpret picture of Lake Mohave water levels.