PCV valve location 97 Bravada

Can anyone help us. We are trying to replace the PCV valve on my 97 Bravada and can't seem to find where the old one is located. Our repair manual which is generic for several differant vehicles shows several locations. Yet we still can't find it on my bravada. Anyone know where it may be?

Thanks,
Dee

On top of the drivers side valve cover just forward of the rear valve cover hold-down bolt. There's a skinny plastic hose on it.