There are two cabins on the 100 loop, and the rest of the spaces are campsites. These two cabins have nice landscaping and an outside rock fire pit. I don't know why these two cabins are there, and I had heard at one time that they were owned by some corporate sponsor, and reserved for their employees. However, on one trip a couple of years ago, some friends of ours reserved a cabin, and ended up being assigned to one of these cabins. You might want to ask about these cabins when making your reservations. The other way to do it is to try to get a cabin on the 2100 loop that backs up to the campsites in the 1100 loop. We did this one year, and it worked out great. I am sorry that I do not have the cabin numbers or the site numbers, but there are a few that back up to each other.