Wetlands of North and South Dakota

Madison Wetland Management District, South Dakota

	Basin Area (Acres)	Basin Area / Square Mile	No. Basins	No. Basins / Square Mile
Basin Class	47,806	8.25	73,476	12.68
Temporary
Seasonal	81,242	14.02	61,053	10.54
Semipermanent	131,891	22.76	15,569	2.69
Lake	77,447	13.37	316	0.05
River	8,752	1.51	1,310	0.23
Total	347,138	59.91	151,724	26.18
Total Without Lake and River	260,939	45.04	150,098	25.91