[evil_genius_180]

Well, that's debatable. There is actually no canon evidence that the orbital drydock from the first movie is in fact the San Francisco Fleet Yards. First, it's a single structure, which begs the question of why it's called Fleet Yards (implies more than one structure.) Some believe the actual San Francisco Fleet Yards are on Earth and the orbital drydock structure is just a systems checking/integration structure. The only "official" source that claims the orbital drydock is in fact the San Francisco Fleet Yards is The Star Trek Encyclopedia. However, I don't know why Mike and Denise Okuda bothered to include that, since that whole assumption is based on the fact that the Enterprise is seen in that structure at the beginning of TMP, which is 26 years after it was built. We have no canon proof that the ship was built in that structure 26 years earlier or that said structure even existed 26 years earlier.