Great Salt Lake

State: Utah. Type: terminal saltwater lake in northern Utah, the largest saltwater lake in the Western Hemisphere. Surface area fluctuates dramatically with water levels: about 950 square miles (2022) versus a modern high of roughly 3,300 square miles (1987). Average depth is shallow, about 16 feet. Salinity ranges from about 5% to 27%, well above ocean salinity (3.5%). Water levels have declined from 4,211 feet (1987) to 4,188.5 feet (2022), prompting warnings the lake could shrink drastically without policy changes.

The Great Salt Lake is a shallow, terminal saltwater lake in northern Utah and the largest saltwater lake in the Western Hemisphere, though its size shifts enormously with rainfall and water use, since it has no outlet and loses water only to evaporation. Mormon pioneers under Brigham Young reached its shores in 1847, and the lake was supplying the new settlement with salt within a month of their arrival. Today the lake is best known for its extreme salinity, which allows swimmers to float almost effortlessly, and for its outsized ecological role: it hosts millions of migratory shorebirds and waterfowl and supplies a large share of the world's commercial brine shrimp cysts. In recent years the lake has become a focal point of environmental concern, as decades of drought, climate change and upstream water diversion have driven water levels to historic lows, with some scientists warning the lake could effectively dry up by 2028 absent policy changes. Most visitors experience the lake via Antelope Island State Park, which offers shoreline access, hiking and wildlife viewing.

The Great Salt Lake sits in northern Utah, just west of Salt Lake City, within the Great Basin. It has no natural outlet; several rivers, including the Bear, Weber and Jordan, feed into it, and it loses water solely through evaporation. Antelope Island, the largest island in the lake, is reached via a causeway from Syracuse, Utah in Davis County.

The lake sits in Utah's arid Great Basin climate, with hot, dry summers and cold winters typical of the broader Salt Lake Valley region. Because the lake is shallow and terminal, its surface area and shoreline change substantially with seasonal and multi-year precipitation patterns rather than staying fixed like a river-fed lake.

Spring and fall offer milder temperatures for shoreline walks, hiking and wildlife viewing at Antelope Island. Summer draws visitors interested in floating in the lake's dense saltwater, though algae blooms and brine-fly concentrations near the shore can be more noticeable in the warmest months; winter is quieter but colder.

Mormon pioneers led by Brigham Young reached the Salt Lake Valley in 1847 partly on the strength of explorer John C. Frémont's earlier expedition reports on the region, and the lake was providing salt to the new settlement within a month of their arrival. The lake's water level and surface area have fluctuated substantially over the historical record, reaching a modern high of about 3,300 square miles in 1987 before declining sharply in recent decades. That decline, driven by a combination of drought, climate change and upstream water diversion for agriculture and municipal use, has become a major environmental and policy issue in Utah, with elevation dropping from 4,211 feet in 1987 to 4,188.5 feet by 2022.

Floating in the lake's dense saltwater is the signature activity, most accessible via beaches on Antelope Island. Antelope Island State Park offers hiking and biking trails, wildlife viewing (including a resident bison herd), and beach access along the lake's southeastern shore. Birdwatchers visit for the millions of migratory shorebirds and waterfowl that use the lake as a stopover, and some visitors add lake or wetlands boat tours where available.

Antelope Island State Park is the primary visitor gateway to the lake, offering shoreline beaches, hiking/biking trails, and the historic Fielding Garr Ranch. The lake's northern arm, separated by a railroad causeway, has notably higher salinity than the southern arm and produces a distinct pink hue in places from salt-loving microorganisms.

Antelope Island State Park is reached via a causeway from Syracuse, Utah in Davis County, roughly a 45-minute to 1-hour drive from downtown Salt Lake City. Salt Lake City International Airport is the nearest major airport for travelers flying in, with a rental car needed to reach the lake and island.

Per Utah State Parks, Antelope Island's gate hours vary seasonally: November-February 6 a.m.-6 p.m., March/October 6 a.m.-8 p.m., and April-September 6 a.m.-10 p.m.; the park is closed on Thanksgiving and Christmas. The Antelope Island visitor center operates 10 a.m.-4 p.m., and the historic Fielding Garr Ranch is open 9 a.m.-5 p.m.

Per Utah State Parks: Antelope Island entrance fee is $15 per vehicle (up to 8 people), $10 per vehicle for seniors 65+, $5 per motorcycle, and $3 per person for bicyclists/pedestrians; an annual pass (which also covers the Davis County Causeway fee) costs $65. Fees are subject to change; confirm current rates before visiting.

A half-day is enough for a beach visit and short hike on Antelope Island; a full day allows time for the historic ranch, longer trails and more extensive wildlife viewing.

Lodging is concentrated in nearby Salt Lake City and Davis County towns such as Syracuse and Layton, rather than directly on the lakeshore; Antelope Island itself offers a campground for visitors wanting to stay overnight near the water.

Dining options are limited directly at the lake; visitors typically eat in nearby towns such as Syracuse or Layton, or in Salt Lake City, before or after a lake visit.

Salt Lake City, about 45 minutes to an hour away, offers a wider range of attractions, dining and lodging. Park City's mountain resorts are within a similar driving distance to the east for a broader Wasatch Front itinerary.

Salt Lake City International Airport is the nearest major airport; a rental car is essentially required to reach Antelope Island and the lake's shoreline, since there is no public transit directly serving the causeway.

The lake's high salinity can sting eyes and irritate skin or open cuts, so rinse off with fresh water after swimming/floating; avoid getting lake water in your eyes. Brine flies cluster near the shoreline in warm months and can be a nuisance, though they don't bite. Sun exposure on the open lakeshore and causeway can be intense, so bring sun protection and water. Dial 911 for emergencies.

Sunscreen, a hat, sunglasses and plenty of drinking water; a change of clothes and fresh water (or a rinse-off station) after floating in the salty lake; sturdy shoes for trails on Antelope Island.

Check current lake and water-level conditions before visiting, since shoreline access and swimming conditions can shift with the lake's fluctuating levels. Pair a trip with Antelope Island's trails and Fielding Garr Ranch to round out a half- or full-day visit. Rinse off promptly after floating in the lake to avoid skin and eye irritation from the high salt content.

Dial 911 for any emergency. Antelope Island State Park's main office can be reached at 801-773-2941; the entrance gate can be reached at 801-725-9263.

Utah State Parks, Antelope Island State Park - https://stateparks.utah.gov/parks/antelope-island/

This section is being updated and will be available shortly.

This section is being updated and will be available shortly.

This section is being updated and will be available shortly.