It's twisty, so I'm just going to quote the official listing:
The Great Northwest is an experimental documentary that is based on the re-creation of a 3,200 mile road-trip made in 1958 by four Seattle women who thoroughly documented their journey in an elaborate scrapbook of photos, postcards, and brochures. Fifty years later, Portland artist and filmmaker Matt McCormick found that scrapbook in a thrift store, and in 2010 set out on the road, following their route as precisely as possible and searching out every stop in which the ladies had documented. Patiently shot with an observational and voyeuristic approach, The Great Northwest is a lyrical time-capsule that explores how the landscape and road-side culture of the Pacific Northwest has changed over the past 50 years.
Matt McCormick will be in attendance at tonight's screening, and The Great Northwest runs at NWFF through Thursday. Full info here.