rectangular recessed area filled with rough, irregularly shaped, light-colored stones

rectangular recessed area filled with rough, irregularly shaped, light-colored stones. The stones are packed densely and appear to be of various sizes, with some larger than others. A dark, wet substance, possibly water or mud, is visible beneath and between some of the stones, particularly along the bottom edge of the recess. The recess itself is bordered by dark, flat surfaces, which appear to be tiled or paved. The overall environment is dark, with some areas of reflection on the dark surfaces, suggesting artificial lighting. There are no people, animals, or specific identifiable landmarks to indicate a precise location within Howayi, Nigeria. The scene depicts a construction or drainage feature filled with aggregate.