GeoBoundsRegion
GeoBoundsRegion[{{latmin,latmax},{lonmin,lonmax}}] is a two-dimensional GeoGraphics primitive that represents a geo region bounded by parallels latmin, latmax and meridians lonmin, lonmax on the surface of the Earth.
GeoBoundsRegion[g] represents the latitude-longitude bounding box of the geo region g.
GeoBoundsRegion[g,δ] pads the ranges of latitudes and longitudes by ±δ.
Please visit the official Wolfram Language Reference for more details and examples on core symbols.