Hi Ken - an impressive driver lineup indeed. This must have been quite soon after Jody Scheckter joined McLaren. IRO Oulton Park - throughout the sixties there were always long lines of cars queuing to get into the circuit. Its quite a long circuit and there are several good viewing spots, but you have to know how to get to them. My favourite spot (from a photographic perspective) was on the exit from Old Hall corner. But I often parked the car on the back straight into knicker brook and captured the cars at speed. Having departed the UK in mid 1970 I can't comment on attendance at that time, but the circuit is still popular today it seems, as my nephew goes there quite often.