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U-M divers retrieve 8,900-year-old piece of wood from Lake Huron
Annarbor.com (12/12)
University of Michigan researchers announced they have found a 5 1/2 foot long, pole-shaped piece of wood that is 8,900 years old in Lake Huron.
Superior researchers studying invasives, ballast water
Ashland Current (2/9)
Determining how clean a ship's ballast water must be to prevent the spread of aquatic invasive species is the goal of the latest research partnership between the Northeast-Midwest Institute and the Lake Superior Research Institute at the University of Wisconsin-Superior.
RIVERKEEPERS: Tending the waterways
Niagara Gazette (2/6)
The goal of the Buffalo Niagara Riverkeeper is two-fold: protecting the water quantity and the quality, as well as connecting people to the waterfront.
Internationally renowned ‘Ocean Doctor’ to speak in Grand Rapids
MLive.com (2/3)
Known as the “Ocean Doctor,” David Guggenheim will speak in Grand Rapids, Mich., about the many similarities between the threats to the oceans and to our Great Lakes.
SUNY Fredonia to lead Great Lakes pollution study
Wall Street Journal (2/3)
Plastic pollution in the Great Lakes will be the focus of a study this summer. Led by the State University of New York at Fredonia, researchers will try to quantify the amount of plastic polluting the fresh water Great Lakes.
SSC students taking part in marine science bowl
Arenac County Independent (1/31)
Teams of Michigan high school students will be heading to Ann Arbor this weekend to take part in the annual Great Lakes Bowl, a quiz event that focuses on questions about marine and freshwater systems and biology.
What's going on in your neighborhood this month? Meet other people and learn together at recreational and educational events! Our new dynamic calendar is updated daily with current educational events.
Where are all of the locks located in the Great Lakes?
from Anita in New York, New York, Age 37
There are nineteen separate locks located in the Great Lakes and rivers that make up the St. Lawrence Seaway. They routinely raise a variety of ships up to more than 180 meters above sea level. These locks are located in the following canals:
- The South Shore Canal contains two locks that lie 14 nautical miles from the Port of Montreal to the Port of St. Louis
- The Beauharnois Canal contains two locks that link Lake St. Louis to Lake St. Francis
- The Wiley-Dondero Canal contains two locks that provide access to Lake St. Lawrence
- The Iroquois Canal contains one lock that connects the St. Lawrence River to Lake Ontario
- The Welland Canal contains eight locks connecting Lake Ontario to Lake Erie
- The St. Mary's Falls Canal contains four locks linking Lake Huron to Lake Superior at Sault Ste. Marie.
Related references:
TEACH: Great Lakes Ports and Shipping -- To the ocean and beyond
Great Lakes-St. Lawrence Seaway System: Locks, Canals, and Channels
Great Lakes Atlas, 3rd ed.: People and the Great Lakes -- Canals, Shipping, and Transportation
Photo Tour of the St. Lawrence Seaway
Thank you for your question!
Answered on July 20, 2001