Well, where there's sawdust, there's usually a sawmill.
3 seconds sound clip from Scooby-Doo, Where Are You! - That's Snow Ghost (S1E17).
You can hear this line at 00:10:14.139 in the Blu-ray version of the episode.
Quote context
[...]
- Do you believe that story Mr. Chi told us?
- Well, right now, it's the only story we have.
- There's some more of the Snow Ghost's footprints. And look! They're covered with sawdust.
- Sawdust? Maybe he works in a meat market. Ha ha ha! Ha ha ha!
- Well, where there's sawdust, there's usually a sawmill.
- And I'll bet that's where we'll find those footprints came from.
- Wow! This place looks more like a scare mill than a sawmill.
- It's probably been deserted for at least 100 years.
- And I'm for keeping it deserted. Let's get out of here.
- Not before we get to the bottom of this mystery.
[...]