Was visiting with friends in Khok Si Suphan, a town 22 km from Sakon Nakhon when I saw this procession. Barefooted monks on an apparent pilgrimage.
They were on their way to That Phanom to pay homage at a revered temple there.
I observed an almost unending column of monks for over half an hour before they disappeared in the distance, they had over 80 km to go.