Indiana State Route 59 is the main north-south highway in Clay County. This runs through the central portions of the county. IN St Rt 59 passes through the following towns in Clay County. Brazil Billville Ashboro Clay City Martz Howesville Bogle Corner IN St Rt 59 is multi-plexed in Clay County. Indiana State Route 246, from Clay City to Martz. IN St Rt 59 intersects the following highways in Clay County. U.S. Rt. 40, at Brazil.
