What's proud and tall, big yet small, and loyal to the very end?

Me, upon accepting my mod invitation to this sub. To everyone here I just want to say, thanks. I vow to post at least one riddle every few months.

Not sure if this is protocol but a little background about myself: I created r/BearJokes, which welcomes you with open arms.

Now without further ado, let's get riddlin'!