This is not just a dive bar, it's a dive warehouse. It's friggin' huge.
It's packed with dozens of pool tables, foosball tables and dart boards. There are probably 50+ tables with multiple chairs throughout the whole thing. The bartenders are laidback and easy to have a laugh with. The rail gin is usually Tanqueray (for under $4/drink), which delights me to no end.
FYI, this is in the "town" of Madison, not the city. Therefore, be prepared for lots and lots of smokers inside!