We stayed at Silver River last year and enjoyed it, so we put in on our itinerary again this year.   Our site last year was a large pull thru with 50 amp service.  This year we have a "Back In" site with only 30 amps.  Although not as big as our site last year, it is still quite roomy and secluded, and 30 amps is more that adequate, especially as we don't need to run the A/C.