312 Underground Puts a Cocktail Bar Below South Main
The basement bar at 312 South Main adds a compact, walk-in cocktail option to one of Ann Arbor's busiest dining blocks.
South Main Street carries a dense run of restaurants and bars. Echelon, Pretzel Bell, Black Pearl, and Jolly Pumpkin all sit within a few blocks. At 312 South Main, the cocktail option is below street level.
312 Underground is a basement cocktail bar reached from the South Main entrance. Public listings identify the address, while current menus, hours, prices, and walk-in policies should be confirmed directly before visiting.
The Drinks
The cocktail program has used seasonal menus alongside classic drinks. Because that list changes, a previously published cocktail is evidence of the program's direction, not a promise about what is available today.
A past summer menu included a mezcal, watermelon, and chile combination. Readers should treat that as a dated example and use the bar's current service channels for today's ingredients and prices.
Beer and wine have also been available, giving the room a function beyond house cocktails.
The Room
The basement location is the defining feature. The room is compact, low-ceilinged, and better suited to a focused drink than a large gathering.
Seating and entry policies can change. Check current information before building an evening around a walk-in table.
South Main Below Grade
Ann Arbor has relatively few basement bars, so 312 Underground adds a distinct format to the South Main corridor. The practical appeal is simple: a cocktail stop on the same block as several dinner options.
The Chop House is nearby at street level, and Bar Lupulus is across the street. That concentration makes 312 Underground useful as one part of a South Main plan rather than a standalone destination claim.
312 Underground is at 312 S Main St, Ann Arbor. Confirm current hours, menu, and entry policy directly before visiting.