/usr/include/mapbox/ is in libmapbox-geometry-dev 0.9.2-1.
This file is owned by root:root, with mode 0o755.
..
/usr/include/mapbox/geometry/
/usr/include/mapbox/geometry.hpp
/usr/include/mapbox/geometry/box.hpp
/usr/include/mapbox/geometry/envelope.hpp
/usr/include/mapbox/geometry/feature.hpp
/usr/include/mapbox/geometry/for_each_point.hpp
/usr/include/mapbox/geometry/geometry.hpp
/usr/include/mapbox/geometry/line_string.hpp
/usr/include/mapbox/geometry/multi_line_string.hpp
/usr/include/mapbox/geometry/multi_point.hpp
/usr/include/mapbox/geometry/multi_polygon.hpp
/usr/include/mapbox/geometry/point.hpp
/usr/include/mapbox/geometry/point_arithmetic.hpp
/usr/include/mapbox/geometry/polygon.hpp