Pronghorns have been clocked at speeds of 60 mph or more! [September; Yellowstone National Park, Wyoming]
![Pronghorns have been clocked at speeds of 60 mph or more! [September; Yellowstone National Park, Wyoming]](https://photos.smugmug.com/photos/i-xhbRrMt/0/L/i-xhbRrMt-L.jpg)
![Pronghorns have been clocked at speeds of 60 mph or more! [September; Yellowstone National Park, Wyoming]](https://photos.smugmug.com/photos/i-W55stGT/0/L/i-W55stGT-L.jpg)