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MLRA 53B - Central Dark Brown Glaciated Plains
North Dakota and South Dakota
44,980 km2 (17,370 mi2)
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Water:
In most years moisture is inadequate for maximum crop production. The Missouri River is the only dependable source of water for irrigation; therefore, only a small acreage is irrigated. There is a limited supply of ground water. In places, ponds are a source of water for livestock.