http://www.cic.gc.ca/english/visit/visas.asp
Visitor Visa Exemptions
Many people do not require a visa to visit Canada. These include:
* persons lawfully admitted to the United States for permanent residence who are in possession of their alien registration card (Green card) or can provide other evidence of permanent residence;
Visitor Visa Exemptions
Many people do not require a visa to visit Canada. These include:
* persons lawfully admitted to the United States for permanent residence who are in possession of their alien registration card (Green card) or can provide other evidence of permanent residence;
