| Horizon | Depth (cm) | Description |
| Oa1 | 0 - 50 | Black (10YR2/1) highly decomposed sapric organic material; fine granules; dry loose; clear smooth boundary. |
| Oawd1 | 50 - 75 | Very dark brown (10YR3/3) highly decomposed sapric organic soil material with many large undecomposed wood pieces; wavy boundary. |
| Oawd2 | 75 - 110 | Very dark brown (10YR3/3) highly decomposed sapric organic soil material; wet, massive, and sticky; many large undecomposed pieces of wood. |