could you tell me where the pcv valve located?

could you tell me where the pcv valve located on a mazda b 2300 1994 2.3 liter.I have looked everywhere.Is it located under the intake manifold and if it is how do I get to it without taking off the intake manifold itself??? PS I can see a vacuum line from the evap canister going under the intake manifold but I cant get to it... Thanks,Steve