This log, which is hollowed out, was made into a makeshift cabin by a man named Hale Tharp, thought to be the first non-Native American to enter the Giant Forest in the 1800’s. There is an enclosure with a door at the root-end and inside is a table and some benches.
Sorry for the glare in the last photo. There is a hole cut into the side of the fallen tree to allow light in (which it obviously does!). There was a wooden “roof” constructed outside the hole to keep rain out (which you can see in the first photo).