Grundy County Highway V12 is a short north-south highway in Northwestern Grundy County. This connects U.S. Rt. 6 to Grundy County Highway C28. It runs along Saratoga Road. GCH V12 does not pass through any towns in Grundy County. GCH V12 passes through the following townships in Grundy County. Erienna Morris GCH V12 intersects the following highways in Grundy County. U.S. Rt. 6, near Morris. Grundy County Highway C28, near Morris.