Stream Flow in Minnesota

These maps show stream flow levels and general patterns in stream flow throughout the state of Minnesota from 1991 to present. Data for each of Minnesota's 81 major watersheds are gathered by 89 gaging stations (84 operated by the U.S. Geological Survey and the remaining 5 operated by the Minnesota Department of Natural Resources' Division of Waters) and are analyzed by the Stream Flow Unit of the Minnesota Department of Natural Resources to produce weekly stream flow reports during the open water season from late March to October. These reports are used by the Division of Waters to provide an overview of current stream flow conditions throughout the state. During periods of low stream flow, streams are further monitored to ensure that adequate stream flow is maintained to protect fish and wildlife and supply hydroelectric power plants and municipal water needs.

The Land Management Information Center would like to thank the Minnesota Department of Natural Resources' Stream Flow Unit for providing data for these maps. (Most of the maps in this library range between 12 K and 14 K in size.)

Background Information for Stream Flow Maps

Watershed Boundaries

Watershed Boundaries in Minnesota (21 K)

Index of Minnesota's Major Watersheds

Documentation

Map Legend
Interpreting the Map Legend: Exceedence Values and the Legend Categories

Stream Flow Maps

1991

1992

1993

1994

1995

1996

Documentation for Stream Flow maps

Map Library