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U.S. Postal Commemorative, Jefferson National Expansion Memorial
St. Louis, Missouri
The pronghorn antelope can reach speeds around 60 miles per hour and can maintain a pace of 45 miles per hour for several minutes. The only faster land animal is the cheetah, reaching speeds of 70 miles per hour for short distances.
Image courtesy of Bob Martin, GVCC. On a trip in western Montana I visited the National Bison Range near Missoula, MT. Near the end of the one way road thru the refuge I came upon this Pronghorn on the left side of the road about 10 feet away. He looked at me for a least 5 minutes while I maneuvered the car for good close-ups.
Wonders of America: Land of Superlatives Stamp Series@2005 United States Postal Service. All rights reserved. Used with Permission.
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Image below courtesy of John Robertson, GVCC. The pronghorn is an extremely fast and graceful animal indigenous to the western United States. Both male and female pronghorns have characteristic two pointed horns composed of keratin growing over a bony core. The outer sheath of the horn is shed annually. This buck was photographed north of Cheyenne, in the expansive open grassland of Wyoming.