The Earthscapes stamp collection shows three categories of landscapes: natural, agricultural, and urban.
Here, a volcanic leaves its mark on an area of Washington State.
The beauty of a natural geothermal spring.
Fog rolls in over Utah's Monument Valley.
Here, a glacier empties into a lake, where icebergs break off and bob in the water.
The stunning green of marshland.
The agricultural images show five products being gathered, grown or harvested: salt, timber, grain, cherries and cranberries.
Here, water is being evaporated to leave behind salt.
A cranberry bog.
Here, timber makes its way to the mill.
Center-pivot irrigation systems create the beguiling play of geometric shapes in the middle stamp although bystanders on the ground might see only sprinklers in fields of wheat, alfalfa, corn and soybeans.
The urban images cover a variety of scenes, including this railroad roundhouse.
City apartments rise in this image.
Highways corkscrew around themselves, our world, in a new way.
Neat subdivisions sport tiny blue pools.
Barges haul their cargo.