Read "Beyond the Great Wall" at The Eldritch Dark:
As with his poem "Flamingoes" (which I read a few days ago), Clark Ashton Smith (CAS) sold "Beyond the Great Wall" to the geographical magazine Asia. Both poems are rather slight, and one doesn't hear CAS' unique authorial voice come through these lines with any clarity.
I think it's fair to consider these as poems that served to expose the poet to a wider audience, and perhaps to earn some money as well. But within the scope of CAS' entire poetic corpus, these are at best very minor items.