| Description |
Predominant slope of the landscape.
| Slope (%) |
Approximate degrees |
Terminology |
| 0 - 0.5 |
0 |
Level |
| 0.5 - 2 |
0.3 - 1.1 |
Nearly level |
| 2 - 5 |
1.1 - 3 |
Very gentle slopes |
| 5 - 9 |
3 - 5 |
Gentle slopes |
| 9 - 15 |
5 - 8.5 |
Moderate slopes |
| 15 - 30 |
8.5 - 16.5 |
Strong slopes |
| 30 - 45 |
16.5 - 24 |
Very strong slopes |
| 45 - 70 |
24 - 35 |
Extreme slopes |
| 70 - 100 |
35 - 45 |
Steep slopes |
| > 100 |
> 45 |
Very steep slopes |
| -9 |
n/a |
Unknown or not applicable |
While this is a numeric field, the values will often be the mid point of the traditional slope classes described in the table above. |