USGS/Environment and Climate Change Canada International Gauging Stations Map

For more than a century, Canada and the United States have maintained a system of monitoring streamflow and water levels for shared waters. Today, the USGS and Environment and Climate Change Canada (ECCC) maintain a network of International Gauging Stations and International Support Gauging Stations that are determined to be mutually beneficial to both agencies.  This map shows the location of these stations.