Secret Location

I say!

I am currently at the secret location, somewhere in America - all will be revealed eventually, via a little quizz. In the meantime, I have found - to my delight - that the hospitality is not only sponsored, but virtually limitless.

Fortunately, the locals are particularly pleasant and friendly, and are very forgiving of my foibles.

The secret location is a large city, and there is a river running through it.

Can you guess where it is?

MM III