This dataset represents the network-adjusted results of relative- and absolute-gravity surveys. Relative-gravity surveys were carried out using a Zero Length Spring, Inc. Burris relative-gravity meter. The effect of solid Earth tides and ocean loading were removed from the data. Instrument drift was removed by evaluating gravity change during repeated measurements at one or more base stations. Absolute-gravity surveys were carried out using a Micro-g LaCoste, Inc. A-10 absolute-gravity meter. Vertical gradients between the different measuring heights of the absolute- and relative-gravity meters were measured using a relative-gravity meter and tripod and were used to correlate the measurements between the two instruments. Relative-gravity differences and absolute-gravity data were combined using a least-squares network adjustment as implemented in the software GSadjust (https://github.com/jkennedy-usgs/sgp-gsadjust). Additional information about the network adjustment is provided under Data Quality. Version 2.0 of this dataset included additional data from seven surveys carried out in 2017-2019. Version 3.0 of this dataset included additional data from four additional surveys carried out in 2020-2021. Gravity values for the Dec. 2018 through Dec. 2019 surveys are different than version 2.0 because of updated laser-drift corrections for the absolute-gravity measurements. As of 2021, observed absolute-gravity values are also available in the Southwest Gravity Program Absolute Gravity Database (https://doi.org/10.5066/P984HN6J). Gravity values at all stations in version 3.0 of this data release are reported at land-surface elevation. Previously, absolute-gravity values at stations not included in the network adjustment (HRUN, MSDL, NEST, NMGS, SVIS, WBLF, WGHT, and WTF1) were reported at 100 cm height. Version 4.0 of this dataset includes additional data from three surveys carried out in 2023-2025. No data were collected in 2022. Beginning in 2023, surveys were carried out once per year (from 2016 to 2021, surveys were carried out three times per year). Additional stations were added to the network in 2023. Data are provided in tabular (csv) format. The file contains one row per station, with multiple columns for gravity and gravity standard deviation. Storage change in meters of water can be calculated from gravity change using the Bouguer infinite slab approximation, whereby [change in gravity, in microGal]/41.9 = meters of water. Any use of trade, firm, or product names is for descriptive purposes only and does not imply endorsement by the U.S. Government. First posted - September 22, 2017 Revised - September 9, 2020, ver. 2.0 Revised - March 8, 2023, ver. 3.0 Revised - June 27, 2025, ver. 4.0