Located in downtown Janesville's historic Carriage Works building, Rock County Brewing Company is a nano brewery offering hand-crafted beers made in small batches. Stop in for a taste of their latest brew and take home a growler or crowler - they fill growlers from any brewery. Check out the website for the current tap list with detailed descriptions of their creations.  Food trucks are often on site and are announced on their Facebook page. They also have a private event space available to rent.