Wisconsin State Route 129 is a north-south highway on the eastside of the Lancaster Area. This runs between U.S. Rt. 61 and U.S. Rt. 61. WI St Rt 129 does not pass through any towns in Grant County. WI St Rt 129 is not multi-plexed in Grant County. WI St Rt 129 intersects the following highways is in Grant County. U.S. Rt. 61, near Lancaster. U.S. Rt. 61, near Lancaster. Wisconsin State Route 35, near Lancaster. Wisconsin State Route 81, near Lancaster.
A junction marker on SB U.S. Rt. 61/WI St Rt 35; EB WI St Rt 81.
