Most of the state raised relief maps have two main styles: The first uses natural coloration, which shows the landscape as it may actually appear from the air.
The second style uses color to emphasize different elevation levels (green for the lowest, yellow for mid-range, burnt-orange for higher, etc.). This technique is used particularly well by Raven Maps and Images, and Hubbard has used their maps as the basis for the type known here as "Raven Style."
Their are three departures from the two main styles. The Wisconsin map uses a elevation-dependent color scheme similar in principle to the Raven maps, though it does not actually employ a Raven base map nor does it differentiate as many elevation levels. The Arkansas and Missouri maps use a USGS shaded relief map as their base map.
Most states are available only in one of the two main styles. The exceptions are Arizona, California, Colorado, and Texas, all available in natural coloring or Raven-style.
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