Jackson's men turned left at this intersection.
As a busy industrial site, Catharine Furnace sat at a road intersection. Upon reaching the furnace, "Stonewall" Jackson's men turned left onto what is now Jackson Trail East. Joe Hooker learned of the Confederate march around 8:00 am, but waited until 2:00 PM before sending a reconnaissance-in-force to ascertain the purpose of the Confederate column and break it up. General Sickles III Corps was sent down the road from Hazel Grove to the furnace, but arrived too late to either obtain information on Jackson's march or to damage it.