raise("The minimum latitude must be less than the maximum latitude, but it wasn't")
end
unless min_lon >= -180 && min_lat >= -90 && max_lon <= 180 && max_lat <= 90
raise("The minimum latitude must be less than the maximum latitude, but it wasn't")
end
unless min_lon >= -180 && min_lat >= -90 && max_lon <= 180 && max_lat <= 90