Where in Duluth? Bathroom Edition

The top two are at Bent Paddle's taproom.

Is the fourth one down Black Water?

Bent Paddle is correct,  Moosetracks!
Fitz, none of them are from Black Water.

Lest Ms. Dean be accused of tricky, I'll note the last one is not technically in Duluth. It's a few miles outside of Duluth in the Rice Lake Township.

The fifth one down must be Billy's, and I feel like the third down is the Reef.

Third one down:  Rustic.

Yes, the fifth is Billy's.

The third is the Rustic.

Two is the one that's not a bar or restaurant. Winter outdoor enthusiasts would be most likely to get it.
Four is one of Duluth's newer establishments.

I'll guess Snowflake for the 2nd and Tavern on he Hill for the 4th.

You are correct, Special K!

So, to recap: 

1) Bent Paddle Brewery
2) Snowflake Nordic Ski Center
3) The Rustic
4) Tavern on the Hill
5) Billy's