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Introduction

The Great Salt Lake, located in northern Utah, is the largest natural lake west of the Mississippi River and a remnant of the prehistoric Lake Bonneville. Its size, salinity, and ecological significance make it one of the most unique inland water bodies in North America. The Lake’s salinity ranges from three to nine times saltier than the ocean, fluctuating with seasonal inflows and evaporation. These conditions create distinct ecological zones that support specialized microbial and invertebrate communities. The lake’s surface area also varies greatly throughout the year, with significant seasonal changes that can expose large areas of lakebed and contribute to dust pollution.

For the purpose of this management plan, our primary focus is on the southern portion of the lake, where water levels, salinity and habitat loss are of most concern. The maps included in this plan will highlight specific regions within the southern basin, illustrating current conditions and identifying key areas discussed throughout the document. These visual aids are intended to build a clear baseline for understanding and inform future management strategies.

Ecological and Economic Importance: Despite its extreme conditions, the Great Salt Lake supports a surprisingly rich and interconnected ecosystem. The lake is home to unique species like brine shrimp and brine flies, which thrive in salty waters and serve as essential food sources for millions of migratory birds. While the lake itself doesn’t support fish due to its salinity, the wetlands and surrounding areas provide habitat for a variety of amphibians, reptiles, mammals, and plants. . .

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Summary and Suggested Courses of Action

In conclusion, the long-term sustainability of the Great Salt Lake depends on coordinated, science-driven, and culturally informed management. Protecting cultural heritage sites like Danger Cave and preserving sensitive archaeological areas must go hand in hand with continued support for research, education, and close collaboration with tribal nations, archaeologists, and historians. Sustainable lake management requires urgent water conservation efforts, reduction in diversions, and a balanced approach that honors both ecological preservation and economic activity. Legislative and infrastructure improvements should continue, ensuring proper waste management and strict adherence to EPA guidelines for mineral and energy production.

Mitigating contamination through careful monitoring of water discharge and total maximum daily loads (TMDLs), alongside erosion control measures—such as check dams, vegetated buffers, and wetlands near industrial outfalls—will help stabilize watershed health. Restoration efforts must be adaptive and data-informed, using GIS tools to prioritize critical zones across public and private lands. This includes promoting rotational grazing, removing invasive species like phragmites and cheatgrass, and restoring native vegetation. Regular monitoring using technologies like the USGS GSL Hydro Mapper and NDVI imagery will be essential for tracking salinity, soil degradation, and invasive spread.

Integrating soil and vegetation management to address compaction, erosion, and nutrient loss must be habitat-centered, employing techniques like deep-rooted perennial planting and controlled burns to combat cheatgrass. Phragmites should be mechanically removed and supported by ongoing reseeding research. Though tree cover around the lake is minimal, a comprehensive survey of existing trees, their threats, and associated wildlife dependencies is recommended. Special attention must be given to Antelope Island, as it is a delicate biodiversity hotspot in the GSL.