USGS Groundwater Information: Hydrogeophysics Branch
As part of improvements to the USGS Water Resources Mission Area web presence to better serve you, this site is being sunset.
As some content is migrated to new locations, users will be redirected automatically.
In the interim, these pages are not being updated.
If you have questions, please contact the Hydrogeophysics Branch at firstname.lastname@example.org
[an error occurred while processing this directive] Internal USGS users should bookmark our new HGB internal home page: https://water.usgs.gov/usgs/espd/hgb/
USGS staff running borehole optical imaging logging computers