Traveling to Canada from US?

Hi. My family and I are planning on traveling to Canada this weekend by land (driving). The problem is, there are some family members that are not yet permanent US residents, meaning they don't have passports yet.

I understand that passports are only necessary for traveling by plane, and I also understand that traveling by land only requires proof of citizenship and photo ID.

My question is, can they simply use a green card to get it? From what I know, green cards have both your photo and proof of citizenship. My uncles have drivers license but my aunts don't drive yet. Any help please?

"When you enter Canada, a CBSA officer may ask to see your passport and a valid visa, if one is necessary. If you are a citizen of the United States, you do not need a passport to enter Canada. However, you should carry proof of your citizenship, such as a birth certificate, certificate of citizenship or naturalization, as well as photo identification. If you are a permanent resident of the U.S, you should bring your Permanent Resident Card (i.e., green card) with you."

Enjoy your trip :)

Green cards will be sufficient. Permanent residents CANNOT get U.S. passports...they must use their passports from their home countries when travel ling to places that require passports. See 1st site below and read section on international travel. It does no good for them to try to use their birth certificates at the border, since they were not born in the u.s. Many people that answer these questions do not seem to understand that. A green card is not a proof of citizenship since green card holders are not citizens. A green card is a proof that the holder is a permanent resident of the U.S. You say you have some family members that are not yet U.S.permanent residents...but you seem to be saying they have green cards.
This does not make sense. If a person has a green card, That person IS a a permanent resident. He is not a citizen, but is a permanent resident. See 2nd site to verify that permanent residents may travel to Canada using their green cards. Scroll down to section on "permanent residents.'