Thanks Nick.
It's hard to do a scene with ice and snow in the summer, Nick.
The one major advantage of shooting in the winter in these parts is that there is virtually NO humidity in the air, which lets a photographer get these ultra-sharp images that are impossible to get at any other time of year. A couple of other advantages at these latitudes is that sunrise is much later in the day and sunset much earlier, and "golden hour" seems to last much longer with the sun so close to the horizon.
Spring photography is almost impossible because the blackflies come out in May and the mosquitos are rather fierce in June. I have bug resistant gear, but the hands can be a real problem to protect.
The disadvantages are the cold and snow, and working in these conditions. My photography gear and approach does not change, other than having to carry more batteries (and keeping them close to the body to keep them warm) and taking a bit of care when moving from cold to warmer enviornments (condensation on lenses, mainly).
We do have proper clothing for winter conditions, so it's not too bad if one is dressed for it. The only part I don't like is having to remove my gloves or mitts to manipulate the camera controls or change lenses. I did have snowshoes in the car, in case the snow got too deep, but this wasn't a problem for this shoot. I've been in situations where I couldn't set up my tripod, because it insisted on sinking down into the snow. Setting up a 5' high tripod and then having to squat down to use it is no fun at all.
Driving to and from the sites, especially on country roads, like I had to do for this shot, is probably the hardest part, especially before sunrise and after sunset. It can be difficult to figure out where the blasted road is at times...