A major crash on State Highway 206 near Walton has left two people with serious injuries. The crash happened near Bear Spring Mountain. Walton Fire and EMS personnel responded to the scene just after 4pm on Tuesday and found two vehicles had collided nearly head on. One of the vehicles ended up going over the guardrail and down a steep embankment. Two people were in each car for a total of four patients. Two of them had to be flown by medical chopper to Delaware Valley Hospital.