| County : Lyon | |||
| County Characteristics | Area (ac)* | Percentage | |
| Major Watersheds | Redwood River | 201,451 | 45.2 |
| Cottonwood River | 149,308 | 33.5 | |
| Hawk Creek-Yellow Medicine River | 95,052 | 21.3 | |
| Agroecoregions | Coteau | 255,259 | 57.3 |
| Dryer Blue Earth Till | 146,827 | 32.9 | |
| Stream Banks | 33,559 | 7.5 | |
| Wetter Blue Earth Till | 10,166 | 2.3 | |
| Slope Steepness | 0-2 Percent | 139,807 | 31.4 |
| 2-6 Percent | 291,343 | 65.4 | |
| 2-12 Percent | 7,178 | 1.6 | |
| 6-12 Percent | 7,235 | 1.6 | |
| Water | 247 | 0.1 | |
| Internal Drainage | Poorly drained | 133,239 | 29.9 |
| Poor/Improved by tiling | 6,568 | 1.5 | |
| Well drained | 305,757 | 68.6 | |
| Water | 247 | 0.1 | |
| Proximity to Water | Landlocked | 274,578 | 61.6 |
| Intermittent River | 100,777 | 22.6 | |
| Permanent River | 33,386 | 7.5 | |
| Drainage Ditches | 27,408 | 6.2 | |
| Lake Shoreline | 9,375 | 2.1 | |
| Water | 247 | 0.1 | |
| Island Shoreline | 40 | 0.0 | |
| Geomorphology | Medium productivity | 430,480 | 96.6 |
| Ianhoe-Worthington Coteau (068) | 247,997 | 55.6 | |
| Blue Earth Till Plain (066) | 197,813 | 44.4 | |
| Low productivity | 14,413 | 3.2 | |
| High productivity | 917 | 0.2 | |
| Water Erosion | Moderate | 48,632 | 10.9 |
| High | 194,646 | 43.7 | |
| Severe | 85,652 | 19.2 | |
| Extreme | 116,881 | 26.2 | |
| Wind Erosion Group | Severe | 230,937 | 51.8 |
| Moderate | 214,873 | 48.2 | |
| Precipitation | Between 24-26 inches | 373,721 | 83.8 |
| Between 26-28 inches | 72,089 | 16.2 | |
| Growing Degree Days | 2000-2250 Degree Days | 23,272 | 5.2 |
| 2250-2500 Degree Days | 389,998 | 87.5 | |
| 2500-2750 Degree Days | 32,541 | 7.3 | |
| * Expressed as acres or percent for County area in the Minnesota River Basin | |||