Before us = ahead of us, in front of us, etc. For example: "John stood before the king" means "John stood in front of the King". It can also mean "ahead" as in "in the future". For example: "We have a lot of decisions before us" can mean "We have a lot of decisions ahead of us" (meaning "in our future") I hope that helps!

"We have a long ride before us" is generally said before a long journey. Before means in the front . It means the same in the above context too.

We have a long ride before us = Впереди у нас долгая дорога.