Volunteer-run Great Salt Lake Tracker provides daily water level data from U.S. Geological Survey stations at Saltair Boat Harbor and Gilbert Bay, showing the lake’s elevation, volume, and salinity.

The tracker aggregates USGS measurements to illustrate trends in the largest saline lake in North America, which influences air quality, wildlife habitat, mineral extraction, and water supply for Utah communities.

Measurements are averaged at midnight each day and displayed with the previous day's date. The minimum healthy level is defined as 4,198 feet above sea level; the tracker indicates the current level meets this benchmark, with 0 feet of lakebed exposed and 0 square miles of lake area below natural elevation of 4,207 square miles. Salinity ranges between 12% and 16%, considered optimal for brine shrimp. The South Arm is measured at Saltair, while the North Arm is measured at Gilbert Bay. Additional visualizations include snow water equivalent, cumulative precipitation, and a hydromapper that tracks lake level, volume, and salinity over time. The Utah Department of Natural Resources also offers a related dashboard linking to various data sources.

The tracker updates daily, offering policymakers and residents a real-time reference for assessing water resource decisions affecting the lake’s future.