A topographic map is a map which incorporates a huge collection of information and may be divided into three major groups: relief features which are depicted in brown contour lines, water features which are depicted in blue color and cultural features which are depicted in black color.
Out of all the given choices, the four main features of a topographic map are boundaries which are marked by black or red broken lines and can either be national, state, territorial or country boundary, physical features such as trails, railways, airports, runnels, bridges, river, swamp, marsh, vineyard, recreational activities and terrain, settlements which may include roads, cities and buildings and communication which is essential to carry out information needed by its readers.