Examples of using "あそこだ" in a sentence and their english translations:
There he is.
-[dog barks] -There she is, down there! Dana!
Right up there.
Go around the other way! Where's he gone?
It's a long way down. There she is.
There he is. I'm not the only one that's tired. -[Bear grunts] -[sheep bleats]
There's the valley we're heading for! Wow, just got taken in an up-draft!