St. Clarence Park
The cave contains a number of Dumpsters and other containers, which again contain many useful items.
You should note this location, and return to pick up more items later. Note, that after your first visit to the place, a small group of Wolfes takes up place inside the cave. You can outrun them, but it is probably wise to bring a Weapon and kill them.
List of some of the items that you can find in the snowcave: