Originally Posted By: wagga
What In The World Happened Here? CXLI (141):

(What a horse does to rid itself of a rider) +
(Valley pillaged by LA) +
(Lake at the top of 39) +
(Where a princess lives)

And it's not far from Rick Kent.

Not a venue I had ever seen, but I figured out the make of the car, which allows someone with fewer skills than Sherlock Holmes to search it out with a little help from Google.