'98 vacuum lines

Just about finished with my intake gasket swap and I realized that I have no idea what or where the line is that hooks to the vacuum port at the right rear corner of the manifold. It's the outlet on the very rear corner by the alternator. Anyone have a picture or a diagram? The one in my manual is not the least bit helpful and finding a picture of that specific area on the internet is difficult. Thanks

Just plug it. It's not needed. The important vacuum lines are the break booster, egr, vent/purge, pcv, the HVAC, and the one form the intake to the rear valve cover by the rear water outlet. Hope this helps.