/usr/include/mrpt/maps/ is in libmrpt-dev 1:1.2.2-1.1.
This file is owned by root:root, with mode 0o755.
..
/usr/include/mrpt/maps/include/
/usr/include/mrpt/maps/include/mrpt/
/usr/include/mrpt/maps/include/mrpt/maps/
/usr/include/mrpt/maps/include/mrpt/maps.h
/usr/include/mrpt/maps/include/mrpt/maps/link_pragmas.h
/usr/include/mrpt/maps/include/mrpt/opengl/
/usr/include/mrpt/maps/include/mrpt/opengl/CAngularObservationMesh.h
/usr/include/mrpt/maps/include/mrpt/opengl/CPlanarLaserScan.h
/usr/include/mrpt/maps/include/mrpt/otherlibs/
/usr/include/mrpt/maps/include/mrpt/otherlibs/octomap/
/usr/include/mrpt/maps/include/mrpt/otherlibs/octomap/AbstractOcTree.h
/usr/include/mrpt/maps/include/mrpt/otherlibs/octomap/AbstractOccupancyOcTree.h
/usr/include/mrpt/maps/include/mrpt/otherlibs/octomap/ColorOcTree.h
/usr/include/mrpt/maps/include/mrpt/otherlibs/octomap/CountingOcTree.h
/usr/include/mrpt/maps/include/mrpt/otherlibs/octomap/MapCollection.h
/usr/include/mrpt/maps/include/mrpt/otherlibs/octomap/MapCollection.hxx
/usr/include/mrpt/maps/include/mrpt/otherlibs/octomap/MapNode.h
/usr/include/mrpt/maps/include/mrpt/otherlibs/octomap/MapNode.hxx
/usr/include/mrpt/maps/include/mrpt/otherlibs/octomap/OcTree.h
/usr/include/mrpt/maps/include/mrpt/otherlibs/octomap/OcTreeBase.h
/usr/include/mrpt/maps/include/mrpt/otherlibs/octomap/OcTreeBaseImpl.h
/usr/include/mrpt/maps/include/mrpt/otherlibs/octomap/OcTreeBaseImpl.hxx
/usr/include/mrpt/maps/include/mrpt/otherlibs/octomap/OcTreeBaseSE.h
/usr/include/mrpt/maps/include/mrpt/otherlibs/octomap/OcTreeBaseSE.hxx
/usr/include/mrpt/maps/include/mrpt/otherlibs/octomap/OcTreeDataNode.h
/usr/include/mrpt/maps/include/mrpt/otherlibs/octomap/OcTreeDataNode.hxx
/usr/include/mrpt/maps/include/mrpt/otherlibs/octomap/OcTreeIterator.hxx
/usr/include/mrpt/maps/include/mrpt/otherlibs/octomap/OcTreeKey.h
/usr/include/mrpt/maps/include/mrpt/otherlibs/octomap/OcTreeLUT.h
/usr/include/mrpt/maps/include/mrpt/otherlibs/octomap/OcTreeLUTdefs.h
/usr/include/mrpt/maps/include/mrpt/otherlibs/octomap/OcTreeNode.h
/usr/include/mrpt/maps/include/mrpt/otherlibs/octomap/OcTreeStamped.h
/usr/include/mrpt/maps/include/mrpt/otherlibs/octomap/OccupancyOcTreeBase.h
/usr/include/mrpt/maps/include/mrpt/otherlibs/octomap/OccupancyOcTreeBase.hxx
/usr/include/mrpt/maps/include/mrpt/otherlibs/octomap/Pointcloud.h
/usr/include/mrpt/maps/include/mrpt/otherlibs/octomap/ScanGraph.h
/usr/include/mrpt/maps/include/mrpt/otherlibs/octomap/math/
/usr/include/mrpt/maps/include/mrpt/otherlibs/octomap/math/Pose6D.h
/usr/include/mrpt/maps/include/mrpt/otherlibs/octomap/math/Quaternion.h
/usr/include/mrpt/maps/include/mrpt/otherlibs/octomap/math/Utils.h
/usr/include/mrpt/maps/include/mrpt/otherlibs/octomap/math/Vector3.h
/usr/include/mrpt/maps/include/mrpt/otherlibs/octomap/octomap.h
/usr/include/mrpt/maps/include/mrpt/otherlibs/octomap/octomap_deprecated.h
/usr/include/mrpt/maps/include/mrpt/otherlibs/octomap/octomap_timing.h
/usr/include/mrpt/maps/include/mrpt/otherlibs/octomap/octomap_types.h
/usr/include/mrpt/maps/include/mrpt/otherlibs/octomap/octomap_utils.h
/usr/include/mrpt/maps/include/mrpt/slam/
/usr/include/mrpt/maps/include/mrpt/slam/CBeacon.h
/usr/include/mrpt/maps/include/mrpt/slam/CBeaconMap.h
/usr/include/mrpt/maps/include/mrpt/slam/CColouredOctoMap.h
/usr/include/mrpt/maps/include/mrpt/slam/CColouredPointsMap.h
/usr/include/mrpt/maps/include/mrpt/slam/CGasConcentrationGridMap2D.h
/usr/include/mrpt/maps/include/mrpt/slam/CHeightGridMap2D.h
/usr/include/mrpt/maps/include/mrpt/slam/CLogOddsGridMap2D.h
/usr/include/mrpt/maps/include/mrpt/slam/COccupancyGridMap2D.h
/usr/include/mrpt/maps/include/mrpt/slam/COctoMap.h
/usr/include/mrpt/maps/include/mrpt/slam/COctoMapBase.h
/usr/include/mrpt/maps/include/mrpt/slam/COctoMapBase_impl.h
/usr/include/mrpt/maps/include/mrpt/slam/CPointsMap.h
/usr/include/mrpt/maps/include/mrpt/slam/CRandomFieldGridMap2D.h
/usr/include/mrpt/maps/include/mrpt/slam/CReflectivityGridMap2D.h
/usr/include/mrpt/maps/include/mrpt/slam/CSimplePointsMap.h
/usr/include/mrpt/maps/include/mrpt/slam/CWeightedPointsMap.h
/usr/include/mrpt/maps/include/mrpt/slam/CWirelessPowerGridMap2D.h
/usr/include/mrpt/maps/include/mrpt/slam/PCL_adapters.h