So I live just about 6 hours away from Auburn, and it's always been an idea of mine to go there mostly to see his boulder memorial/grave, as a sort of West coast version of people always visiting Lovecraft's grave.
In the case of Lovecraft though, there's whole guides on the internet about tours and memorials and places from his life etcetera all over Providence, but there's nothing like this that I've seen for CAS, or for that matter any other weird fiction writers . Suggestions would be appreciated

The old Auburn Public Library on Almond Street should be a good site to visit.

I've given plenty of CAS tours around the Auburn area over the years, even though many of the sites are no more. Plaque, boulder, Auburn library, old town; hopefully the Gaylord house where Smith was born hasn't been torn down yet . . . I'd be happy to show you around if we can coordinate on a good time.