Gravity Reference Stations

The Canadian Gravity Standardization Net (CGSN) provides a nationwide gravity datum defined by more than 5000 control stations systematically distributed throughout Canada. The adjustment of the CGSN is based on the International Gravity Standardization Net (IGSN71), therefore the datum definition is considered accurate to several tens of microgals.

CGSN station information can be accessed via the CSRS Online Database . You can also view the CGSN stations via Google Earth (KML).