Beaver create large ponds by damming streams. They then build their Lodge (Home) in the middle or deeper part of the pond. After a few years they will have cleaned out all the deciduous Trees, which they use for food and building, around the pond and it then becomes time for them to move on to a better source, and then build another Dam.
After they leave, their Dam gradually breaks down and all that is left is a cleared area, with a stream running through it and the remains of their Old Lodge. Such a Lodge, and cleared area, is found, and is visible about 30 meters ENE of the cache.
The Cache contains a few trade items and FTF PIN and unactivated-activated Travel Bug Dog Tag for the FTF Cacher.