| Watershed : Marsh River | |||
| Watershed Characteristics | Area (ac)* | Percentage | |
| Agroecoregions | Swelling Clay Lake Sediments | 93,819 | 37.0 |
| Inter-Beach Sand Bars | 85,158 | 33.6 | |
| Very Poorly Drained Lake Sediments | 65,620 | 25.9 | |
| Dryer Till | 6,798 | 2.7 | |
| Poorly Drained Lake Sediments | 1,930 | 0.8 | |
| Steep Dryer Moraine | 366 | 0.1 | |
| Counties | Norman | 227,386 | 89.6 |
| Clay | 24,777 | 9.8 | |
| Polk | 1,527 | 0.6 | |
| Slope Steepness | 0-2 % | 206,845 | 81.5 |
| 2-6 % | 46,519 | 18.3 | |
| 6-12 % | 326 | 0.1 | |
| Drainage | Poorly Drained | 136,014 | 53.6 |
| Well Drained | 70,401 | 27.8 | |
| Poor Improved by Tiling | 47,275 | 18.6 | |
| Proximity | Land Locked | 164,238 | 64.7 |
| Drainage Ditches | 45,296 | 17.9 | |
| Intermittent River | 27,791 | 11.0 | |
| Permanent River | 15,325 | 6.0 | |
| Lake Shoreline | 1,040 | 0.4 | |
| Geomorphology | Agassiz Lacustrine Plain, Red River Valley Area | 187,124 | 73.8 |
| Agassiz Lacustrine Plain, Inter-Beach Area | 59,403 | 23.4 | |
| Fosston Till Plain, Loamy | 6,798 | 2.7 | |
| Erskine Moraine, Loamy | 366 | 0.1 | |
| Water Erosion | Moderate | 247,169 | 97.4 |
| Severe | 6,521 | 2.6 | |
| Wind Erosion Group | Very Severe | 47,023 | 18.5 |
| Severe | 146,212 | 57.6 | |
| Moderate | 60,456 | 23.8 | |
| Precipitation | Between 18-20 inches | 31,325 | 12.4 |
| Between 20-22 inches | 148,358 | 58.5 | |
| Between 22-24 inches | 74,006 | 29.2 | |
| Growing Degree Days | 2000-2250 Degree Days | 161,991 | 63.8 |
| 2250-2500 Degree Days | 86,065 | 33.9 | |
| 2500-2750 Degree Days | 5,634 | 2.2 | |
| * Expressed as acres or percent for major watershed area in the Red River of the North basin | |||