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.
States L2 Landing Page Tabs
1970 Aerial Infrared Surveys of Reykjanes and Torkajokull Thermal Area
1970 Aerial Infrared Surveys of Reykjanes and Torkajokull Thermal Areas, Iceland, with a Section on Cost of Exploration Surveys Article - EROS History Project
1998 25th Anniversary Argus Leader Article
1998 25th Anniversary Argus Leader Article - EROS History Project
1970 Announcement that Sioux Falls is EROS site
1970 Announcement that Sioux Falls is EROS site
1970 Comparison of 1968 and 1966 Infrared Imagery of Surtsey Article
1970 Comparison of 1968 and 1966 Infrared Imagery of Surtsey Article - EROS History Project
1991 EROS Data Center Annual Report
1991 EROS Data Center Annual Report - EROS History Project
Records Management Report March 2019
Records Management Report March 2019, from the National Satellite Land Remote Sensing Data Archive
Measuring Absolute Gravity on Top of Terry Peak, SD
USGS researchers made microgravity measurements to determine groundwater-storage changes in the karstic Madison aquifer in the Black Hills of South Dakota during 2009-12. The absolute-gravity measurement was made at a station located on top of Terry Peak in the northern Black Hills.