We will be pulling our 26 ft 5th wheel and have been advised that it is not a good idea to pull the trailer on the Historic Columbia River Highway so I am lookng at revising our Aug 2014 itinerary to include an additional day in the Gorge area. I note that Ainsworth State Park is close by but it does not take reservations. Not having reservations can be very stressful so am searching for other alternatives. Although we don't tend to like RV parks, any alternative is worth looking at. Thanks for your assistance!