The good thing about most national and state parks is that a lot of people visit them. We have always been able to locate a private RV Park within an acceptable driving distance from the National or State Park. Private RV Parks tend to have wider access roads and sites to accomodate larger RVs.
We park our 38ft 5th wheel at the private park and drive our truck into the Nat'l/State park to see the sights.
Since I live in Southern California an acceptable driving distance for me is up to an hour away. I drive 6 miles to work every day and it takes 45 minutes in traffic.
