When driving in mountains, you will have shorter sight distances, so it is important that you look up, reference down and adjust your speed so that you can see at least 12 seconds ahead.
When you drive down mountains, you sometimes move faster than you wish. You will find that shifting to a lower gear will help you to slow down. As you travel down the mountain, brake very lightly and continuously. This method of braking is least likely to overheat your brakes.