I have been in many parts of the US
Kosher Food Can be difficult to find, the best thing to bring is Labriyut or these Meal Mart Meals that are double wrapped and can be heated in a microwave
You will not find a Minyan in many parts of the US, maybe in Big cities you will, but it might not be anywhere near where you are staying, You will probably be staying downtown and the minyanim are on the outskirts and can be difficult to find if you are not familiar with the area (GPS would definatly help)