Japan Rail Pass, once again

I've read hundreds of pages about the Japan Rail Pass, but I don't fully understand. Are you telling me that I can take, let's say, the Yamanote Line from Shinagawa to Shinjuku just by showing my JRP? What are the other designated lines where I can take advantage of this Pass within the Tokyo Metro Area?

Vicker,

Are you telling me that I can take, let's say, the Yamanote Line from Shinagawa to Shinjuku just by showing my JRP?

Yes.

What are the other designated lines where I can take advantage of this Pass within the Tokyo Metro Area?

It is valid on all JR Lines, which in the central Tokyo area includes the Yamanote Line (light green), Chuo Line (orange), Sobu Line (yellow) trains, amongst others. I know people who have even used their passes to travel from Shinagawa to Tokyo by shinkansen istead of the Yamanote Line, since that is free too.

perhaps you should read the actual site of the JR pass?! www.japanrailpass.net/
all the JR trains plus JR buses and ferries are free with the JR pass. the transit maps of Tokyo, Osaka, Kyoto etc. available in guidebooks and on the internet clearly indicate which ones of the lines are JR. it is quite easy, really!

Thank you guys for the information. I read the Japan Rail Pass web page for a second time. Now is crystal clear.