| County : Ottertail | |||
| County Characteristics | Area (ac)* | Percentage | |
| Major Watersheds | Otter Tail River | 788,365 | 90.0 |
| Buffalo River | 39,242 | 4.5 | |
| Bois De Sioux River | 24,347 | 2.8 | |
| Mustinka River | 17,344 | 2.0 | |
| Red River of the North | 6,375 | 0.7 | |
| Agroecoregions | Poorly Drained Lake Sediments | 15,241 | 1.7 |
| Steep Dryer Moraine | 602,828 | 68.8 | |
| Steeper Till | 76,962 | 8.8 | |
| Very Poorly Drained Lake Sediments | 8,194 | 0.9 | |
| Dryer Till | 172,449 | 19.7 | |
| Slope Steepness | 0-2 % | 57,770 | 6.6 |
| 2-6 % | 270,493 | 30.9 | |
| 2-12 % | 144,588 | 16.5 | |
| 6-12 % | 60,196 | 6.9 | |
| 6-45 % | 286,322 | 32.7 | |
| 12-45 % | 2,503 | 0.3 | |
| Water | 53,801 | 6.1 | |
| Drainage | Well Drained | 570,972 | 65.2 |
| Poorly Drained | 184,591 | 21.1 | |
| No rating | 55,190 | 6.3 | |
| Water | 53,801 | 6.1 | |
| Poor improved by tiling | 11,120 | 1.3 | |
| Proximity | Island Shoreline | 1,510 | 0.2 |
| Lake Shoreline | 193,094 | 22.1 | |
| Permanent River | 30,883 | 3.5 | |
| Intermittent River | 48,728 | 5.6 | |
| Drainage Ditches | 3,566 | 0.4 | |
| Water | 53,801 | 6.1 | |
| Land Locked | 544,092 | 62.1 | |
| Geomorphology | Detroit Lakes Pitted Outwash Plain | 314,828 | 36.0 |
| Alexandria Moraine Complex | 286,209 | 32.7 | |
| Fergus Falls (Young Gray Drift) Till Plain | 172,449 | 19.7 | |
| Henning Till Plain | 76,411 | 8.7 | |
| Agassiz Lacustrine Plain, Red River Valley Area | 23,435 | 2.7 | |
| Park Rapids-Staples Outwash Plain | 1,792 | 0.2 | |
| Wadena Drumlin Area | 551 | 0.1 | |
| Water Erosion | Slight | 54,491 | 6.2 |
| Moderate | 273,263 | 31.2 | |
| High | 90,604 | 10.4 | |
| Severe | 320,486 | 36.6 | |
| Extreme | 136,829 | 15.6 | |
| Wind Erosion Group | Very Severe | 90,641 | 10.4 |
| Severe | 537,756 | 61.4 | |
| High | 31,070 | 3.6 | |
| Moderate | 161,141 | 18.4 | |
| No Data | 55,064 | 6.3 | |
| Precipitation | Between 20-22 inches | 48,296 | 5.5 |
| Between 22-24 inches | 463,678 | 53.0 | |
| Between 24-26 inches | 238,884 | 27.3 | |
| Between 26-28 inches | 124,815 | 14.3 | |
| Growing Degree Days | 1750-2000 Degree Days | 134,588 | 15.4 |
| 2000-2250 Degree Days | 227,265 | 26.0 | |
| 2250-2500 Degree Days | 412,482 | 47.1 | |
| 2500-2750 Degree Days | 101,338 | 11.6 | |
| * Expressed as acres or percent for the County area | |||