Unified Interior Regions

South Dakota

Surface water and groundwater provide important water supplies in South Dakota. Major rivers include the Big Sioux, James, Cheyenne, and Missouri Rivers. Key aquifers include the Dakota, Madison, Minnelusa, and Big Sioux aquifers. The Dakota Water Science Center has many studies that focus on these resources as well various other national and international studies. 

Link to Science Center

States L2 Landing Page Tabs

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Collecting water-quality data in Armenia
March 2, 2016

Armenia water work

Field training on well inventory and collection of water-level data at a non-flowing well near Yeghegnavan, Armenia, near the Armenia/Turkey/Iran border. Mt. Ararat is in background.

The growth of aquaculture to raise trout, sturgeon and other cold-water fish has increased withdrawals of critical groundwater in the Ararat Basin of Armenia. The USGS is working with

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Aquaculture in Armenia
March 2, 2016

Aquaculture in Armenia

The growth of aquaculture to raise trout, sturgeon and other cold-water fish has increased withdrawals of critical groundwater in the Ararat Basin of Armenia. The USGS is working with partners, including USAID, to develop scientific tools for water-resource managers to understand and predict consequences of management decisions in Armenia.

Collecting Water Samples from a Well in Armenia
March 2, 2016

Water Sampling from Well in Armenia

Mark Anderson, Director of the USGS South Dakota Water Science Center, demonstrates how to collect a stable isotope sample from a flowing well near Sis, Armenia.

The growth of aquaculture to raise trout, sturgeon and other cold-water fish has increased withdrawals of critical groundwater in the Ararat Basin of Armenia. The USGS is working with partners, including

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Collecting Water Data Using a Pressure Gage, Armenia
March 2, 2016

Pressure gage water data collection

Field training on how to measure water level using a pressure gage for a flowing well in Sis, Armenia.

The growth of aquaculture to raise trout, sturgeon and other cold-water fish has increased withdrawals of critical groundwater in the Ararat Basin of Armenia. The USGS is working with partners, including USAID, to develop scientific tools for water-resource

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Canyon Lake
February 29, 2016

Canyon Lake February 2017

Waterfowl population on Canyon Lake in Rapid City, SD, during February 2017.

Ice Jam at White River near Interior, SD (06446500)
February 12, 2016

Ice Jam at White River near Interior, SD (06446500)

Ice jam at White River near Interior, SD (USGS streamgage 06446500). More information on this site is available at https://waterdata.usgs.gov/sd/nwis/inventory/?site_no=06446500&agency_cd=USGS&. 

Image: Ice Jam on White River near Interior, SD
February 11, 2016

Ice Jam on White River near Interior, SD

Ice jam at the White River near Interior, SD, USGS streamgage 06446500, on February 12, 2016. An ice streamflow measurement was made a few days prior to the ice breakup on Februrary 9, 2016, and was 235 cubic feet per second.

Graphic of Williston Basin Oil and Gas Wells, North Dakota, South Dakota and Eastern Montana, 2016
January 1, 2016

Graphic of Williston Basin Oil and Gas Wells

This is a graphic showing the boundary of the Williston Basin Province and Oil and Gas Wells, North Dakota, South Dakota and Eastern Montana, 2016

Resolve 8
December 31, 2015

RESOLVE Bird Used for Collection of Airborne Electromagnetic Data

A low-flying helicopter will carry this large cylindrical sensor, called a bird, to measure physical properties of the Big Sioux aquifer below the Earth's surface. More information on the airborne electromagnetic method is available at https://doi.org/10.3133/fs20163075.

Resolve 10
December 31, 2015

RESOLVE bird flying to collect airborne electromagnetic data

Power lines present challenges in data collection and analyses of airborne electromagnetic data near Sioux Falls, SD. The bird is suspended from a helicopter as it transmits and receives electromagnetic signals to the ground, which are used to interpret characteristics of the aquifer. More information on the airborne electromagnetic method is available at 

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Resolve 11
December 31, 2015

RESOLVE Bird Flying over Corn Field Collecting Airborne EM Data

Airborne electromagnetic data collection a corn field near Sioux Falls, SD. The bird is suspended from a helicopter as it transmits and receives electromagnetic signals to the ground, which are used to interpret characteristics of the aquifer. More information on the airborne electromagnetic method is available at https://doi.

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Resolve 15
December 31, 2015

Airborne Electromagnetic Data Collection Over an Agricultural Field

Airborne electromagnetic data collection over an agricultural field near Sioux Falls, SD. The bird is suspended from a helicopter as it transmits and receives electromagnetic signals to the ground, which are used to interpret characteristics of the aquifer. More information on the airborne electromagnetic method is available at

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