Holy shit. Hey, Doc, Clayton Ravine was named after a teacher. They say she fell in there 100 years ago.
7 seconds sound clip from the Back to the Future Part III movie soundboard.
You can hear this line at 00:46:13.488 in the DVD version of the movie.
Quote context
[...]
- What do you mean, you're gonna be seeing lots of her, Doc?
- Well, I might see her again just in passing.
- Come on, Doc. Did you see the way she was looking at you?
- She did have quite a scare, right?
- After all, Miss Clayton almost ended up at the bottom of Clayton Ravine.
- 100 years ago! That's this year!
- Then she was supposed to go over in that wagon.
- Now I may have seriously altered history.
[...]