Who do i contact to see what i need to travel to canda?

Question

because im not a u.s citizen and i only have my green card and my passport has been expired what department and who do i contact?

Answer 1

These re the Canadian government sites:

http://www.cic.gc.ca/

http://www.goingtocanada.gc.ca

Answer 2

If you are traveling by land, you will not need your passport; just picture ID and your green card.  

By air, you need to contact your consulate to renew your passport before you can travel.