Gravel Road                                            -      N      - 
(-------------------------------------------------)     # <---(M)---> #
                                                        -      S      -

This road is a small path that has been filled up with gravel from the
local quarries.  The gravel that has been placed here is very rough and
large, which makes walking along it rather difficult.  The local residents
decided that gravel was still better than a muddy road after a rain storm.