Skip Links

USGS - science for a changing world

Open-File Report 2015–1043

Surface and Subsurface Microgravity Data in the Vicinity of Sanford Underground Research Facility, Lead, South Dakota

By Jeffrey R. Kennedy, Karl R. Koth, and Robert L. Carruth

Thumbnail of and link to report PDF (5 MB)Abstract

Absolute gravity data were collected at 32 stations in the vicinity of the Sanford Underground Research Facility from 2007 through 2014 for the purpose of monitoring groundwater storage change during dewatering of the former Homestake gold mine in the Black Hills of South Dakota, the largest and deepest underground mine in North America. Eight underground stations are at depths from 300 feet below land surface to 4,850 feet below land surface. Surface stations were located using Global Positioning System observations, and subsurface stations were located on the basis of maps constructed from survey measurements made while the mine was in operation. Gravity varies widely at many stations; however, no consistent temporal trends are present across all stations during the 7-year period of data collection.

First posted March 19, 2015

This publication is online only

For additional information, contact:
Director, Arizona Water Science Center
U.S. Geological Survey
520 N. Park Avenue
Tucson, AZ 85719

Part or all of this report is presented in Portable Document Format (PDF). For best results viewing and printing PDF documents, it is recommended that you download the documents to your computer and open them with Adobe Reader. PDF documents opened from your browser may not display or print as intended. Download the latest version of Adobe Reader, free of charge. More information about viewing, downloading, and printing report files can be found here.

Suggested citation:

Kennedy, J.R., Koth, K.R., and Carruth, R.L., 2015, Surface and subsurface microgravity data in the vicinity of Sanford Underground Research Facility, Lead, South Dakota: U.S. Geological Survey Open-File Report 2015–1043, 32 p.,

ISSN 2331-1258 (online)








Figures (11)

Tables (3)

Accessibility FOIA Privacy Policies and Notices logo U.S. Department of the Interior | U.S. Geological Survey
Page Contact Information: Contact USGS
Page Last Modified: Wednesday, December 07, 2016, 09:40:29 PM