360º of snow, with a variety of access from the Seward Highway. This pass is right by the ocean and is named because of James Cook's notes about having to turn-again to try and find a waterway that went through. The tides are the highest changing tides in the world, but that doesn't really effect the skiing. There are aspects N-W-S-E and depending on the year, snow conditions can change. Snow is very elevation dependent.
How to Get There
Drive south out of Anchorage on the Seward Highway. Go past girdwood, where the Alyeska Ski Resort is, and continue down past Grandview. Turnagain Pass is marked, and there are a number of drainages off of the pass to enjoy the snow!
There is some great camping up here in the summer, but in the winter most of it is covered in snow. There is a lot of wilderness area around and the hostel in Girdwood is a fun place.
Options are limited, but the Bake Shop in Girdwood is pretty good
Snowmobile access is limited to the south side of Turnagain Pass, but there is some great skiing over there. There are a number of parking areas on the side of the road for north side access. Generally it is about 1000' until treeline, and you might have a creek or stream crossing later in the spring.