TY - RPRT TI - Documentation of a pilot workflow for reanalyzing the U.S. Geological Survey principal aquifers datasets and prototype principal aquifer version 2 dataset for three aquifer systems AU - Martha G. Nielsen PY - 2023 DO - 10.3133/ofr20231078 UR - https://pubs.usgs.gov/publication/ofr20231078 ID - ofr20231078 ER -