Another day in the saddle; or are we crazy yet?

I now know that it can be legal for bikes to ride on the Interstate, and I have 65 miles of experience on I 90 under my belt.  If there is no parallel road within 10 miles, I believe, then bikes can be on the interstate.  We rode from  Buffalo to Gillette today, feeling safer than on some of the Montana roads with no shoulder at all.  Early Sunday morning always means very little traffic, but as traffic picked up, the noise got tiresome.  And the game for the day was "Try to find a tree."

Yes, we can see a tree!