This late, you may be able to get a site at a CG w/o full hookups. To me, Fishing Bridge is a big parking lot with RV's. No space around you and a lot of noise and activity. The further out from the center of the park, the easier it will be to find a site, at this late a point in time. We booked a site about 3 weeks ago, and had the chance to get Fishing Bridge, but did not want to deal with the congestion there. We will be doing a week at YNP in August, then down to the Tetons for a few days, then on to Rocky Mountain NP for a few days then head home. Tradeoffs to a later start to booking is what type of site you can get - full H/U's go quick! Good Luck..