:Beautiful weather again, but traffic was heavy. Schools back in session so lots of buses and traffic. Flat tire at exactly the same spot as Monday.

I walked back up the road and found a small rock perfectly camoflaged against the asphault. It was a bit wider then my tires, about 2 inhches high with a sharp edge across the top. I don't think you could design a better shape for pinch flats if you tried.

Hopefully return ride will be better.