There are many old pioneer cabins in the Great Smoky Mountains National Park. Most of them were constructed from native wood, shaped with hand tools such as the broad ax, froe, adz, and drawknife.
The wood in these buildings seems unique and different, with a life of its own. Or perhaps it is the life of the pioneers that remains within the wood. The example above is a classic dove-tail joint used to stack the log walls and keep them tight. The cabin is one you can see in the Cades Cove area of the Park.
The two images below are from cabins at the Mountain Farm Museum near the Cherokee entrance to the Smokies. Notice the nifty crude hinges made from horse-shoes on the barn door in the lower right image.