TY  - RPRT
TI  - Conceptual models of groundwater flow in the Grand Canyon region, Arizona
AU  - Jacob E. Knight
AU  - Peter W. Huntoon
PY  - 2022
DO  - 10.3133/sir20225037
UR  - https://pubs.usgs.gov/publication/sir20225037
ID  - sir20225037
ER  -