Ice is available at each comfort station and the trading posts, it is 2.00 per bag i believe, they are vending machines you put the bag under the dispenser and then insert your money. bags are supplied
What I found are that the bags are the same size as you would get at a conv. store. But for some reason, you get more ice out of the machine. So, when you put your bad (that they provide) under the nozzel....make sure you have another ready to go, because it will fill up the first bag and about a 1/4 of the other bag.
Not all the ice machines are "fill your own bag" the machines
at the trading post located at the settlement are already filled. We bought
a bag each day to keep our cooler filled.