Photography

If the subject of the picture is the snow covered mountain, you will want to make sure you are not overexposing the snow. Easier to get right if the mountain takes up lots of space in the viewfinder.

Alternatively, if the subject is something standing on the snow, you might want to overexpose the snow just a little to get the subject properly exposed.

Of course, sunny vs cloudy will make a big difference, too.

My recommendation would be to take a digital camera with you and use it as the test bed for the exposures given the immediate feedback from the viewing screen.

Does the full format camera have a built in light meter so that it can recommend exposure settings?