2021 AHS Symposium Images

Thanks to Shawn Calendine, AHS Tucson Chapter Secretary, we have images to share from the 2021 AHS Symposium! If you attended the symposium, you may have noticed Shawn angling for...

Report from the USGS Arizona Water Science Center

Techniques and Methods report from the USGS Arizona Water Science Center: Procedures for Field Data Collection, Processing, Quality Assurance and Quality Control, and Archiving of Relative- and Absolute-Gravity Surveys This particular...