The Freeway and the Great Salt Lake

I was suddenly struck by the idea of geography in Cervantes. (not just Cervantes, but all of our readings) Even though many of our authors dealt with similar themes, each work was somewhat regionalized. For example, the desert of Utah affected TTW's novel. In Cervantes, the red geraniums and the temperate climate are very important foundations of her poetry. I'm not yet sure how to develop this thought. Any ideas?
Gussie