- Great Lakes Mapping and GIS banner

Finding GIS Data for Canada

The Canadian government offers a vast amount of free downloadable GIS data for use in personal or public projects. The Great Lakes Information Network (GLIN) uses these resources, along with U.S. data, to compile blended Great Lakes Region data with detailed boundaries and added fields for things like basin statistics and population estimates. Read more »

Finding GIS data for the U.S.

New GIS users are pleased to discover a vast amount of free downloadable GIS data compiled by U.S. government agencies. The trick is knowing which data are available from which agencies. The Great Lakes Information Network provides Great Lakes Region data with detailed boundaries and added fields for things like basin statistics, population estimates, or… Read more »

Filed under: Blog | Tags:

Sea Lamprey Control Map

Barriers to sea lamprey migration play a vital role in the control of sea lamprey population in Great Lakes tributaries by protecting upstream reaches from sea lamprey invasion and spawning.  Crumbling dam infrastructure and an increased interest in stream connectivity has made removing barriers increasingly popular.  The Great Lakes Fishery Commission and the Great Lakes… Read more »

Mapping Dams and Invasive Sea Lamprey

The Great Lakes Fishery Commission and the Great Lakes Commission have launched a mapping application that offers the ability to trace the effects of dams and dam removal on sea lamprey populations in the Great Lakes.  Sea lampreys, which are invasive in the Great Lakes and destroy fish with a voracious appetite, need certain stream types for… Read more »

Filed under: Blog | Tags:

Welcome to the new GLIN Maps

Here at the Great Lakes Commission, we deliver information to support the orderly, integrated and comprehensive development, use and conservation of the natural resources of the Great Lakes basin and St. Lawrence River. We’ve developed this new Maps site to give you quick and convenient access to a wide range of mapping tools and data sets for… Read more »

Lakewide Management Plan (LaMP) Web Mapping Application

The USGS is providing expertise, capacity and support for the implementation of Lakewide Management Plans and the associated goals, objectives and targets for each of the Great Lakes. This work will include participation in LaMP and lakewide processes, programs and projects, including the development of LaMP documents. More information about LaMP and other GLRI programs… Read more »

The Lakebed Alteration Decision Support Tool (LADST)

The Lakebed Alteration Decision Support Tool (LADST) is a research project to develop software and data to assist resource managers in making siting decisions for lakebed-altering projects in the Great Lakes. One major application of this system is the siting of offshore wind power generation projects, but its open-ended design also allows it to be… Read more »

Great Lakes Wind Atlas

This map viewer was developed in 2009 to facilitate GIS data discovery for wind stakeholders. It covers both on land and offshore areas with various thematic layers, such as wind resource, transmission lines and biological features. Users are expected to preview the layers using this viewer and then access data through the links provided. Great… Read more »

Great Lakes Energy-Water Nexus Interactive Map

The Great Lakes Energy Water Initiative (GLEW) initiative will advance integration of energy and water resource decision-making and inform next generation energy development and deployment that better reflects the impacts of power generation on the Great Lakes ecosystem. The Great Lakes Commission is partnering with the U.S. Department of Energy National Laboratories, Cornell University, the… Read more »

Map for the Major Oil Pipelines

After the oil spills in Wisconsin, the inherent risks of oil transport and storage received renewed public attention again. The Oil Pollution Act of 1990 (OPA) as the amendment of the Clean Water Act was passed by Congress. OPA was enacted to reduce the frequency of major oil spills, improve the efficiency of spill response, expand preparedness activities,… Read more »