get_huc4
returns a SpatialPolygonsDataFrame
of the HUC4 regions within
the specified template
. If template is not provided, returns the entire HUC4 dataset.
get_huc4(template = NULL, raw.dir)
A Raster* or Spatial* object to serve as a template for cropping.
A character string indicating where raw downloaded files should be put. The directory will be created if missing.
A SpatialPolygonsDataFrame
of the HUC4 regions within
the specified template
.