This pit house was built in an oval-shaped pit about two feet deep and measured sixteen by twenty-three feet. Before excavation in the late 1990s, remote sensing studies recorded precise surface elevations and about 3,500 individual measurements of the magnetic signature around the house, and combined with excavation they provided a fuller picture of the structure. The entrance was a ramp on the southwest end sloping inward to the floor, and a main hearth lay near the entrance. At the back of the house was a large portion of a bison skull, while the floor held a thin scatter of discarded artifacts and red ochre stains. Fill within the pit contained burned earth, charred timbers, and large bison bones, indicating that the house had a timber roof, was earth-covered, and burned shortly after abandonment. No pits were found inside the house, but outside were prepared pits, shallow trash-filled basins, several hearths, and stored and cached items at the rear of the structure, along with a scatter of processed bison bone. A collapsed burned roof-fall layer contained many artifacts, especially butchered bison bone. Arrangements of small and large posts in front of and to one side of the dwelling may indicate use of the area before House 2 was built. Only three large posts were found, probably supporting a ridge beam spanning the house, and a lintel over a post-framed doorway likely supported one end of the ridgepole in a gabled roof. With virtually no side wall posts present, archaeologists speculate that the walls were made of stacked sod, possibly cut by flat, oval-shaped stone tools found inside the house.