Reference

All functions
envelope_to_huc()	Intersect hydrologic unit boundaries at the specified level with a SpatExtent or bounding box/envelope.
huc_code()	Convert Labels, Hydrologic Unit Codes, or HUC Lengths to Layer IDs
id_to_huc()	Get boundaries for hydrologic unit IDs at the specified level.
point_to_huc()	Intersect hydrologic unit boundaries at the specified level with a SpatVector containing points or X,Y coordinates
polygon_to_huc()	Intersect hydrologic unit boundaries at the specified level with a SpatVector containing polygons.