Nearly a half million settlers traveled the Oregon Trail route from the 1840's to the 1860's. Wagons were approximately 4' wide and this track worn in solid rock will be visible for many more years. These ruts are near Guernsey Wyoming on our way to Casper.  I forgot how wide open the West is. Everyday the land seems to widen out and the sky gets bigger.  We saw a huge prairie dog city that must have covered more than a quarter of a mile. I spotted my first rough-legged hawk in more years than I can remember and called Matt to share.  Our first pronghorns were today.  Still driving on dry roads. Saw our first real mountain today. Lucky us.