| Watershed : Snake River | |||
| Watershed Characteristics | Area (ac)* | Percentage | |
| Agroecoregions | Very Poorly Drained Lake Sediments | 196,931 | 39.2 |
| Inter-Beach Sand Bars | 195,221 | 38.8 | |
| Swelling Clay Lake Sediments | 110,743 | 22.0 | |
| Counties | Marshall | 465,163 | 92.5 |
| Polk | 29,259 | 5.8 | |
| Pennigton | 8,473 | 1.7 | |
| Slope Steepness | 0-2 % | 485,566 | 96.6 |
| 2-6 % | 17,329 | 3.5 | |
| Drainage | Poorly Drained | 237,310 | 47.2 |
| Poor Improved by Tiling | 201,120 | 40.0 | |
| Well Drained | 64,466 | 12.8 | |
| Proximity | Land Locked | 386,534 | 76.9 |
| Drainage Ditches | 54,323 | 10.8 | |
| Intermittent River | 34,367 | 6.8 | |
| Permanent River | 27,673 | 5.5 | |
| Geomorphology | Agassiz Lacustrine Plain, Red River Valley Area | 330,192 | 65.7 |
| Agassiz Lacustrine Plain, Inter-Beach Area | 172,703 | 34.3 | |
| Water Erosion | Slight | 8,799 | 1.8 |
| Moderate | 490,012 | 97.4 | |
| High | 4,085 | 0.8 | |
| Wind Erosion | Extreme | 0 | 0.0 |
| Very Severe | 0 | 0.0 | |
| Severe | 61,255 | 12.2 | |
| Very High | 0 | 0.0 | |
| High | 223,089 | 44.4 | |
| Moderate | 86,211 | 17.1 | |
| Slight | 132,341 | 26.3 | |
| Precipitation | Between 18-20 inches | 407,683 | 81.1 |
| Between 20-22 inches | 95,213 | 18.9 | |
| Growing Degree Days | 1500-1750 Degree Days | 89,507 | 17.8 |
| 1750-2000 Degree Days | 314,114 | 62.5 | |
| 2000-2250 Degree Days | 99,275 | 19.7 | |
| * Expressed as acres or percent for major watershed area in the Red River of the North basin | |||