They can see your IP (all sites can see your IP) based on which they can estimate your location, but it's fairly uncertain. The only trustworthy data it gives you is the country, maybe province if the province is big enough.
They can identify an approximate location based on your IP address. If it's not in their database then it's somewhere in their server logs (will be pretty hard to identify your IP from all the other IPs there). What exactly are you trying to achieve? Do you want to prevent them from knowing your location?
maybe they do, but they couldn't possibly know mine. I am the most fucking best identity concealer here on GAG. 😂😂 BOO ADMINS!! BOO!! :P I hope they don't terminate my account after reading this. LOL!! As If i care... 😜