Geographic Information System (GIS)

GIS_LogoA geographic information system (GIS) is a computer system that integrates hardware, software, and data in
order to capture, store, check, and display geographic, or location-based, data. A GIS allows us to visualize, question, analyze, and interpret data to understand relationships, patterns, and trends in the form of maps.

GIS has become an integral tool at the City of Three Rivers, facilitating the production of maps and spatial analyses in support of internal City departments and the citizens of our community. The GIS Division is housed in the City’s Department of Public Services. For GIS or map-related questions, please call DPS at (269) 273-1845.


St. Joseph County’s GIS Department has an interactive online map viewer with land information services. This map viewer can be accessed from the link below; please note the map viewer requires a Flash enabled web browser.  For more information visit the county’s GIS Office or call  (269) 467-5543.


Water Information:  MyWATERS Mapper is a product of the EPA that can be used to display water-related data including watersheds, hydrologic routing, water quality monitoring locations, water discharges and water impairment status.  For a detailed view of MyWATERS Mapper for Three Rivers, you must have a current version of Adobe Flash Player installed and associated with your web browser.