Bg4--147 to 203 centimeters (57.9 to 79.9 inches); dark brown (10YR 3/3) clay; weak medium subangular blocky structure; firm, very sticky, very plastic; nonfluid; 15 percent medium faint irregular 10YR 4/4), moist, masses of oxidized iron with clear boundaries in matrix and 25 percent medium distinct irregular 10YR 6/2), moist, masses of reduced iron with clear boundaries in matrix. Lab sample # 15N02704.