get_nhd returns a list of `sf` objects extracted from the National Hydrography Dataset.

get_nhd(
  template,
  label,
  nhdplus = FALSE,
  extraction.dir = paste0(tempdir(), "/FedData/"),
  force.redo = FALSE
)

Arguments

template

A `Raster*`, `Spatial*`, or `sf` object to serve as a template for cropping.

label

A character string naming the study area.

nhdplus

Extract data from the USGS NHDPlus High Resolution service (experimental)

extraction.dir

A character string indicating where the extracted and cropped NHD data should be put.

force.redo

If an extraction for this template and label already exists, should a new one be created?

Value

A list of `sf` collections extracted from the National Hydrography Dataset.

Examples

if (FALSE) { # Get the NHD (USA ONLY) NHD <- get_nhd( template = FedData::meve, label = "meve" ) NHD NHD %>% plot_nhd(template = FedData::meve) }