I had an interesting result in local search. On one of my sites in the midwest, I put a page "widgets-blue-size-m-chicago.html" and a picture on the site was "abc-def-size-m-chicago.jpg.
On one of the conversions I checked and a visitor in Chicago area had searched "widgets-size-m-price". This page was number 3 in that market.
It may not surprise many but it is a complex result.
It surprised me. I did it to get the keyword "Chicago widgets". But Chicago was not in his search.