Jungfrau rail cost per RS site

No. Above Mürren you are on the cable car up the Schilthorn.

craig, As Lola mentioned, the Jungfraujoch is on the opposite side of the valley from Mürren, so the only thing above that is the Schilthorn. Therefore the Swiss Pass will provide 50% discount for the cable car to Piz Gloria (from Mürren). For the trip to the Jungfrau, if I'm reading correctly the Pass will provide a 25% discount for that portion of the trip above Wengen or Grindelwald. You'll have to go through either Wengen or Grindelwald on the way to Kleine Scheidegg, which is where you'll transfer to the Jungfraubahn. If you're primarily interested in visiting the Jungfraujoch, you might also have a look at the Jungfrau VIP Pass, as shown here: http://shop.jungfrau.ch/en/bergbahn/vip-pass It provides unlimited travel for three days, including one trip to the Jungfraujoch. It does NOT include the Schilthorn lifts though. Having a Swiss Card and also a Jungfrau VIP Pass would provide discounts for lifts on both sides of the valley (and the VIP Pass is cheaper with a Swiss Pass). I used a similar Pass last September and it worked well. You'll have to choose carefully which day you visit the Jungfraujoch as the weather can be "unpredictable". Unfortunately as there's a time limit on the VIP Pass, that doesn't provide much leeway. I found it a daunting and confusing task to analyze the various Passes to try and figure out which one would be the most cost effective for the places I'd be visiting. Eventually, I just picked one that appeared to be best, and went with that. One final point - be sure that your tickets are in order in Switzerland, as they've reportedly started to follow the Italian example of fining those with any "irregularities" with their tickets. Happy travels!