Yes, as a form of identification only. It will NOT get you back into the US if you do not have Advance Parole if you don't have your Green Card.
Yes, you can bring your baby when crossing the Canadian border.
Customs, Immigration.
Crossing the Canadian border would require a driver's license and passport.
The distance from Missoula, Montana, to the Canadian border varies depending on the specific border crossing. However, the nearest border crossing at Roosville, Montana, is approximately 90 miles north of Missoula. The journey typically takes about 1.5 to 2 hours by car.
Bismarck, North Dakota, is approximately 50 miles (80 kilometers) south of the Canadian border. The nearest border crossing is at the town of Wilmot, which is accessible via U.S. Route 83. Travel times may vary depending on the specific route and border crossing used.
Mount Baker is approximately 30 miles (48 kilometers) south of the Canadian border. The closest border crossing is at the Sumas-Huntingdon crossing, which provides access to Canada. The distance may vary slightly depending on the specific route taken.
One can learn about this specific border crossing on many websites online. Wikipedia provides detailed information regarding this border and where the exact location is on the longitude and latitude line.
The United States and Canadian border is a peaceful border that for many years was not guarded. However 9/11 changed that. Now it is required for all people crossing the border to have passports and identification papers.
Just the Nexus card suffices, but it's wise to have your passport when crossing the border, anyway.
There are more than one border crossing from the US into Canada, so your question is not precise. Also, traffic conditions vary. From the Windsor crossing to Toronto is going to be a few hours, approximately.
== == About six hours, depending on the delay at the Canadian border crossing.
He will probably be cheerfuly arrested by the next Canadian cop he meets. He may even be arrested at the border crossing.