Arena Trial with Irwin sheep. Pro-Novice and Youth trials follow Open trial. Judge is Carolyn Erdman. Online Entry Paper Entry REDWOOD EMPIRE SHEEP DOG ASSOCIATION Potter Valley Classic Sheep Dog Trial | Saturday, September 12, 2026 Potter Valley Rodeo Grounds; 10747 Main Street; Potter Valley, CA  95469 Trial 10:00 am | Judge: Carolyn Erdman Classes: […]