North cascades national park - trailer friendly camping

north cascades seems really remote. Are there any good places where I can bring my trailer?

Yes along the loop there are quite a few locations I found that are trailer friendly. Depends where on the loop you are wanting to stay and how far you would like to be from the park itself. I would suggest Klipchuck just a short distance from the entry to the East for more primitive camping or Riverbend or the Winthrop KOA for more standard and includive amenities. Both of these are great for RVs and still allow you to get out and enjoy the park within a short drive. The park camps themselves were smaller in nature for RVs and seemed overly packed when I was there in late summer.