There are two ports of entry from Canada located in the town of Canaan.
Canaan Port of Entry
Beecher Falls Port of Entry
Beginning January 31, 2008, United States and Canadian citizens 19 years and older who enter the U.S. at land ports of entry will need to present government-issued photo ID, such as a driver's license as proof of identity, along with proof of citizenship, such as a birth certificate or naturalization certificate, or a passport.
Children age 18 and younger will be able to enter with proof of citizenship (birth certificate, naturalization certificate or passport). Verbal claims of citizenship and identity alone will not be sufficient to establish identity and citizenship for entry into the United States.
Permanent residents (green card holders) of the United States, who reenter the U.S. after a visit to Canada, will need to present their alien registration card and evidence their visit was of short duration and temporary in nature.
Non-Immigrants (Visitors, Students, Temporary Workers, Diplomats, etc), who reenter the U.S. after a visit to Canada, will need to present their passport, visa, if needed, an I-94 form and evidence they are still in status in the U.S. Before traveling to Canada, it is recommended that nonimmigrants stops at a U.S. port of entry to ensure they won't encourter any problems when returning to the U.S.
United States citizens and permanent residents traveling to Canada for a brief visit should be prepared to present the same documentation as described above when entering the U.S. They should also be prepared to explain where they will travel, how long they will be there and the reason for their trip.
Legal, in status, nonimmigrants in the U.S. who wish to visit Canada, should contact the Embassy of Canada in Washington, D.C. to determine the exact entry requirements they must meet. Information may be obtained by calling 202-682-1760 or by visiting their website at www.canadianembassy.org.
Additional information about traveling to the United States may be obtained by visiting the Customs and Border Protection website at www.cbg.gov.