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  Lake Ontario
What's New | Overview | General Resources | Programs and Projects
Research | Tourism | Related Resources | Online Mapping

 
What's New
Dredging, big rainstorms turn Lake Ontario waters muddy
Rochester Democrat and Chronicle (7/23)
Heavy rains that drenched western New York recently are being blamed for turning the waters of Lake Ontario into a muddy color along the shoreline in the Rochester area.

Tugboat recovery: River current to be slowed at Iroquois
Cornwall Seaway News (7/21)
The gates of a control dam in Iroquois, Ont., will be lowered Thursday to help slow the current of the St. Lawrence River as tugboat salvage operations in Cornwall ramp up.

Foul odour at Cobourg shore is harmless, town says
Northumberland Today (7/10)
The Town of Cobourg, Ont., public works department and water pollution control plant has issued a press release to state that the foul odour coming from the waterfront is due to a prolific but harmless green algae.

Construction on the way for Niagara-On-The-Lake Wastewater Treatment Plant
Water Online (7/10)
Representatives from the Government of Canada, the Province of Ontario and the Niagara Region celebrated the start of construction of the Niagara-on-the-Lake Wastewater Treatment Plant.

Cayuga county homes just feet away from falling into Lake Ontario
CNYCentral.com (7/7)
The eroding Lake Ontario shoreline foreshadows many problems for coastal residents within the area.

Projects to enhance Great Lakes shoreline approved
Niagara This Week (7/2)
Projects in and around the Lake Erie shoreline selected for the second round of funding under the Regionís lakefront enhancement incentive program are expected to improve public access to the waterfront, reduce conflicts between beach-goers and private property owners, make the waterfront more attractive and target invasive plant species.

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Overview
Lake Ontario is similar to Lake Erie in length and breadth (193 miles by 53 miles). Yet with its greater average depth (approximately 283 feet), Lake Ontario holds almost four times the volume (395 cubic miles) and has a retention time of about 6 years. The drainage basin covers parts of Ontario and New York, and a small portion of Pennsylvania. Major urban industrial centers, such as Hamilton and Toronto, are located on its shore. The U.S. shore is less urbanized and is not intensively farmed.

References: Great Lakes Atlas, Environment Canada and U.S. Environmental Protection Agency, 1995

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General Resources
Bathymetry Map
Ohio State University and NOAA, Great Lakes Environmental Research Laboratory (GLERL)
The Great Lakes Forecasting System provides physical data about the lake, including this bathymetry map.

Bathymetry of Lake Ontario
U.S. National Geophysical Data Center
As part of NOAA's Great Lakes Data Rescue Project, this ite features images of lake depth and lakefloor topography. (Now available: Full color poster.)

Fish of Lake Ontario
University of Wisconsin Sea Grant Institute
Color illustrations or photographs, size, coloring and other information about many Lake Ontario fish species.

Great Lakes Surface Environmental Analysis
NOAA, Great Lakes Environmental Research Laboratory (GLERL)
A map using NOAA satellite data to show recent water temperatures of the Great Lakes.

Historical Data - Lake Ontario
U.S. Army Corps of Engineers (USACE), Detroit District
The Army Corps provides current and historic data on the Great Lakes, including yearly water levels from 1918, monthly storm probability, outflows and precipitation.

Lake Ontario Nowcast Map Products
Ohio State University and NOAA, Great Lakes Environmental Research Laboratory (GLERL)
The Great Lakes Forecasting System provides maps depicting near real time conditions for several variables.

Let's Go Sailing: Ontario
Canada's Aquatic Environments
Physical attributes, watershed facts and more. See also: Lakes Library.

Silver Waters of Lake Ontario
Their goal is to raise awareness of, and appreciation for, Lake Ontario through writing, sailing instruction, nature study, and other means.

Surface Water Temperature
University of Wisconsin Sea Grant Institute
Color illustrations or photographs, size, coloring and other information about many Lake Ontario fish species.

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Programs
Central Lake Ontario Conservation Authority
The Authority's mandate is to establish and undertake programs to promote the conservation, restoration, development and management of natural resources in partnership with local Municipalities and the Province.

Great Lakes Research Consortium
The Great Lakes Research Consortium consists of 16 colleges and universities in New York State and nine affiliated schools in Ontario. GLRC programs help to promote collaborative research on the Great Lakes.

Lakewide Management Plan for Lake Ontario
U.S. Environmental Protection Agency (EPA), Great Lakes National Program Office (GLNPO)
The Lake Ontario LaMP will serve as a plan of action to restore and protect Lake Ontario. It will provide a way to better coordinate the work of the agencies involved and others working to improve the Lake Ontario ecosystem.

New York Sea Grant
Focuses the talents of university scientists and extension specialists on research in the areas of fisheries, coastal environmental quality and processes, invasive species, non-point source pollution and seafood safety.

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Research
Fisheries Research in Lake Ontario
U.S. Geological Survey (USGS), Great Lakes Science Center
Including distribution, abundance and biology of fish populations.

Lake Ontario Biocomplexity Project
This National Science Foundation-sponsored initiative focuses on the physical, biological, and human interactions shaping the ecosystems of freshwater bays and lagoons.

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Tourism
The Great Lakes Circle Tour
Ride along on the 6,500-mile Great Lakes Circle Tour: a scenic, international road system connecting the five Great Lakes and the St. Lawrence River! For new visitors to the region, this online travel guide offers informational maps, road routes and estimated mileages, and links to major cities, camping and recreation areas, and natural attractions.

Lake Ontario Waterfront Trail
Waterfront Regeneration Trust
Stretching 218 miles (350 km) along the shore of Lake Ontario, the Waterfront Trail integrates ecological health, economic vitality and a sense of community.

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Related Resources
GLIN: Lake Ontario Facts and Figures
GLIN: Lake Ontario Current Conditions

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Updated: July 30, 2015
Maintained by: Christine Manninen, manninen@glc.org
Selected Photos: Copyright ©John and Ann Mahan
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