Unclassified choropleth map

http://go.owu.edu/~jbkrygie/krygier_html/geog_353/geog_353_lo/geog_353_lo07.html

These maps are a bit biased in their display of data. Choropleth maps can easily be manipulated with too many classifications or not enough variation between shades of color. The map above has too many classes, and makes it difficult to fully understand the data visible on the map.