County : Mahnomen
County Characteristics Area (ac)* Percentage
       
Major Watersheds Wild Rice River 339,683 91.0
  Sandhill River 21,812 5.8
  Clearwater River 11,710 3.1
  Otter Tail River 87 0.0
       
Agroecoregions Steep Dryer Moraine 171,809 46.0
  Steeper Till 29,299 7.9
  Dryer Till 63,527 17.0
  Mahnomen Lake Sediments 108,657 29.1
       
Slope Steepness 0-2 % 19,602 5.3
  2-6 % 181,542 48.6
  2-12 % 1,371 0.4
  6-12 % 643 0.2
  6-45 % 141,018 37.8
  12-45 % 26,712 7.2
  Water 2,404 0.6
       
Drainage Well Drained 258,919 69.4
  Poor improved by tiling 76,749 20.6
  Poorly Drained 26,467 7.1
  No rating 8,752 2.3
  Water 2,404 0.6
       
Proximity Island Shoreline 195 0.1
  Lake Shoreline 50,379 13.5
  Permanent River 23,534 6.3
  Intermittent River 60,984 16.3
  Drainage Ditches 16,160 4.3
  Water 2,404 0.6
  Land Locked 219,635 58.8
       
Geomorphology Alexandria Moraine Complex 147,146 39.4
  Mahnomen Lacustrine Plain 108,657 29.1
  Fosston Till Plain, Loamy 40,991 11.0
  Itasca Moraine Complex, Rolling 28,520 7.6
  Bagley Outwash Plain, Sandy to Gravelly 24,663 6.6
  Fergus Falls (Young Gray Drift) Till Plain 22,536 6.0
  Falk Till Plain, Loamy 778 0.2
       
Water Erosion Slight 2,100 0.6
  Moderate 115,453 30.9
  High 31,965 8.6
  Severe 223,114 59.8
  Extreme 660 0.2
       
Wind Erosion Group Very Severe 24,606 6.6
  Severe 194,119 52.0
  High 28,382 7.6
  Moderate 121,044 32.4
  Slight 3,081 0.8
  No Data 2,058 0.6
       
Precipitation Between 22-24 inches 308,692 82.7
  Between 24-26 inches 64,599 17.3
       
Growing Degree Days 2000-2250 Degree Days 69 0.0
  2250-2500 Degree Days 132,787 35.6
  2500-2750 Degree Days 240,436 64.4
       
* Expressed as acres or percent for the County area

Last Updated on 3/4/00