You can park in the paved lot D during the week, on weekends they ask you to park on the gravel area as it gets busy. You can stay 7 days. no registration or players card required. Id say they are pretty Friendly to Rvs here, and very few Casinos allow a week and ask for nothing. You could do an easy day trip to Vancouver from here.
RV rules changed in 2016. You used to be able to park over night in the back/staff parking lot. Now it's no longer allowed. They claim they want the parking for events. You now have to park across the busy street (no cross walk) in a gravel lot. We were there for 2 nights and observed that the staff lot was not even close to being full. If you want to feel like a second class citizen, because you are in your RV & not in their $200.00 room, this is the place to go :-(
We just came back from the Silver Reef and were very upset with the RV camping. My husband has mobility problems and the rocks in the strip across the street where we had to park was extremely difficult. The back parking lot was totally empty but we were told that the rules for the summer were "No RVs on the weekends." No exceptions. We were told that a shuttle service would be available to get us over to the casino but it is very hit and miss. We were there for a good 2 hours when no shuttle came around. When asked they said that they were usually closer together than that but we could have phoned over to security and they would have sent someone over. A little hard when you don't have a phone that works in the States. There is no where there to put your garbage either. We are not hard to please but this really was a too much. We left and came home instead of staying the number of days we had planned.
The casino is reserving the usual RV parking area for their casino and special events customers on Friday and Saturday nights. If you park your RV in this area, you will be asked to move by Noon on Friday and can come back on Sunday. Parking in the usual RV area from Sunday to Friday Noon seems to be Ok. The new weekend RV parking area is on the gravel lot, across from the store and gas station. I think more changes are coming for RVers at Silver Reef. If I find out what these are, I will update my post.