Indiana State Route 48 runs east-west across Northern Sullivan County. It connects Shakamak State Park to U.S. Rt. 41. IN St Rt 48 passes through the following towns in Sullivan County. Shelburn Wilfred Hymera IN St Rt 48 is not multi-plexed in Sullivan County. IN St Rt 48 intersects the following highways in Sullivan County. U.S. Rt. 41, at Shelburn. U.S. Rt. 150, at Shelburn.
A junction marker on NB U.S. Rt. 41/WB U.S. Rt. 150.