Access options available for querying tribal spatial data with TADA_DataRetrieval().

This function provides access to six layer datasets containing spatial data related to tribal lands: "Alaska Native Allotments", "Alaska Native Villages", "American Indian Reservations", "Off-reservation Trust Lands", "Oklahoma Tribal Statistical Areas", and "Virginia Federally Recognized Tribes". These datasets are used by TADA_DataRetrieval() when retrieving spatial data for tribal lands specified by the user.

The purpose of TADA_TribalOptions() is to allow the user to review the available data in those datasets and identify the records they would like to query with TADA_DataRetrieval().

An interactive map of the six layer datasets is available on ArcGIS Online Map Viewer here: https://www.arcgis.com/apps/mapviewer/index.html?url=https://geopub.epa.gov/arcgis/rest/services/EMEF/Tribal/MapServer&source=sd

Usage

TADA_TribalOptions(tribal_area_type, return_sf = FALSE)

Arguments

tribal_area_type

A character string. Must be one of the six tribal spatial layers: "Alaska Native Allotments", "Alaska Native Villages", "American Indian Reservations", "Off-reservation Trust Lands", "Oklahoma Tribal Statistical Areas", or "Virginia Federally Recognized Tribes".

return_sf

Logical. Should the function return the dataset as an sf object (TRUE) or a data frame (FALSE)? Defaults to FALSE.

Value

A data frame or sf object containing the specified layer from the EPA Map Service.

Note

Alaska Native Villages and Virginia Federally Recognized Tribes are point geometries in the Map Service, not polygons. At the time of this writing they do not return any data when used for WQP bbox queries.

See also

TADA_DataRetrieval()