Because a book, set foot on the road to Gannan, this book is Yang Xianhui's Gannan Chronicle, in the 90s, the author traveled to Zhagana, the book depicts the history and culture of Gannan, especially its handling of disputes, which belongs to the category of ethnic law, which is very interesting. I suggest you take a look at this book before you go to Gannan. Gannan has the humanities and scenery you want, but no Tibetan altitude.