Tag Archive for: GSL


Human activity is playing a role in the dwindling size of Utah’s Great Salt Lake, according to new research.



Blame it on the pioneers and the historical diversions from a trio of rivers.


Some lakes are home to legendary monsters (here’s looking at you, Bear Lake), while others are home to other organisms. Great Salt Lake’s great lows have exposed microbialites, also known as bioherms, allowing scientists and researchers an uncommon opportunity to get a closer look.


As Utah’s Great Salt Lake continues to drop during recent years of drought, something strange and wonderful is coming into focus in the shallows and exposed lake bed.



It may soon be known as the Great Salt Lakebed.



Regarded as, “…one of the most informative and readable general histories of Utah yet written…” this is a great addition to any history buff’s library collection. Find it ONLINE HERE.

By: Dale L. Morgan
Approached as history, geography, geology, or high adventure, The Great Salt Lake is fascinating reading. From the first Americans through mountain men, religious empires, railroads, and resorts, the remnant of ancient Lake Bonneville has been a nexus for human history, uniting a haunting beauty with raw desolation, strangely removed from common experience.

Check out the Natural History Museum of Utah’s behind the scenes weekend in pictures. This gallery features an adventure to Great Salt Lake where researchers—including one of our geologists, Tom Chidsey and Michael Vanden Berg—pulled up microbialites for display at the museum.


Great Salt Lake’s North Arm is a little salty, even for Great Salt Lake. The Union Pacific railroad causeway is a factor in the build-up of salt crust in the north arm. The Railroad will be starting a bridge-building project to replace a part of the causeway, mitigating some of the water flow issues. Two of our geologists here at the UGS talk about the salt build up and how it’s affected the North Arm.


One of the strangest and most striking places in Utah — an enormous oddity that scientists say was created accidentally by human engineering — is getting a bit of a remodeling job.



For those who have seen piles of white, pillowed foam along the shores of the Great Salt Lake and wondered what caused it, the Utah Geological Survey has an answer.


Bioherm, Great Salt Lake, Antelope Island

The shallow waters of Bridger Bay, on the northwestern tip of Antelope Island in the southern arm of hypersaline Great Salt Lake, support extensive microbial carbonate formation, especially in the north-northeast portion of the bay near Egg Island.  Lake levels in the fall of 2014 were near 60-year lows (as low as 1278.1 m [4193.3 ft] AMSL, compared to the near-term historic average of about 1280 m [4200 ft]), giving unprecedented access to the microbial structures.  Characterizing the microbialites of Bridger Bay, including facies delineation and aerial extent, can inform interpretations of similar deposits in the ancient rock record (e.g., Eocene Green River Formation), including potential petroleum reservoirs.

Headphone Activist – The Rainforest.



The Great Salt Lake is, right now, actually two lakes split in half by a long railroad causeway.  A couple years ago the crumbling culverts that allowed flow between the north and south arms of the lake were closed for safety.  Since then, scientists say, curious things are happening to the lake, especially as it approaches historic low levels.