1. mapsRinteractive::CLAYr
    csv| xlsx| json| ndjson| rda| rds
    data.frame|8614 x 3
  2. mapsRinteractive::CLAYs
    csv| xlsx| json| ndjson| rda| rds
    tbl_df|20 x 4
  3. SurfaceTortoise::boundary
    rda| rds
    SpatialPolygonsDataFrame