https://www.usgs.gov/data/monthly-twelve-digit-hydrologic-unit-code-aggregations-wrf-hydro-modeling-application
This data release contains key variables from the Weather Research and Forecasting Hydrological Modeling (WRF-Hydro) application forced with the CONUS404...
hydrologic unit codemonthlytwelvedigitaggregations
https://www.usgs.gov/publications/hydrologic-unit-map-1974-minnesota
This map and accompanying table show Hydrologic Units that are basically hydrographic in nature. The Cataloging Units shown will supplant the Cataloging Units...
hydrologic unitgeological surveymapminnesota