It is a rural, two-lane road for its entire length.

[3] This route still exists today in Warren and Henderson Counties.

The route was extended in the late 1990s along the old U.S. 34 alignment between Monmouth and Galesburg, after completion of the 4-lane freeway upgrade of US 34 in this section.

The current eastern terminus is U.S. 150 at corner of Henderson and Main Streets in Galesburg.

This was the historic northern terminus of IL 41.