How to determine where a bitcoin address resides I sent bitcoins to a different address that I might own. However, I am unable to determine where that bitcoin address resides. How can I determine where it resides and or how to access that bitcoin address?
You cant. You can send BTC to anywhere, including addresses that will never exist.

If you're reasonably sure that the address is in use, i.e. by seeing active transactions on bitcoin.info, you could try sending a small transaction with a message in it, but it will likely be ignored.

In all probability, you lost these coins.