Damn you, @Twitter. I was looking for a link to use to reply to a Tweet, and then my timeline suddenly jumped to the latest without my intervention. Now I can't find the original Tweet that I'd wanted to respond to. This happens all the time.
You can add location information to your Tweets, such as your city or precise location, from the web and via third-party applications. You always have the option to delete your Tweet location history. Learn more