Purpose : a plurality of kinds of information on the cost of land, can easily be recognized visually. Constitution : different real estate prices zone, a zone on the map area in its price, and subjected to different patterns of different colors, in order of higher numerical value on the cost of land, using warm color from warm, moreover, in the same color, in order of higher numerical value on the cost of land, the density of the pattern from the pattern of low density and high density.