I spent several weeks in the North Cascades mostly backcountry camping in over a dozen locations, however, I spent my final night (of 40) at this campground on Ross Lake. It was October and the campground was essentially empty of guests other than our small group.
Our site was beautiful and bathed in the light of an incredibly bright full moon. The site was large enough for several large tarps and a Black Diamond Beta-Mid. There were picnic tables, fire rings with grills and bear boxes at each site in the campground. The ground was mostly covered in a carpet of earth tone leaves as fall was settling in.
There are several hiking options within this area and they are marked with signs and reflect mileage in both miles and kilometers (you are practically in Canada after all). You can cross the Canadian boarder here and there is a small boarder shack, though no one was on duty during my visit.
The amenities are bare in the fall months, but it was still an awesome spot to stay.