largely on the south side. This all takes place while it narrows back down to two lanes near two housing developments and returns to a rural setting with light forestry. The road then passes by the Kemper Lakes Business Center, Kemper Lakes Golf Club, and the Egret Marsh and then enters Long Grove. Soon after passing a mixed-use development on the northwest corner at an intersection with Old McHenry Road, it briefly enters a denser forest area before widening back to four lanes while again passing by residential developments. After a major intersection with Illinois Route 83, the route takes on the name Half Day Road and enters Buffalo Grove. It passes by more neighborhoods, a shopping plaza on the northeast corner of Buffalo Grove Road, the Arboretum Club, and the Prairie View Metra Station next to the at-grade North Central Service tracks. The road then enters Lincolnshire and heads nearby the Stevenson High School and an office complex before intersecting with Illinois Route 21/U.S. Route 45 (Milwaukee Avenue), with northwest corner containing a gas station, the northeast a grocery store, and the other two being undeveloped. It then travels by Crane's Landing Golf Course, near the Half Day and Wright Woods Forest Preserves, and goes over the Des Plaines River as it once again encounters a wooded area which surrounds nearby homes. Soon the road intersects and forms a diamond interchange with Interstate 94 (Tri-State Tollway); many office complexes and corporate buildings, such as Hewitt Associates, are located nearby. On the east side of the interchange, Illinois 22 enters Bannockburn as it passes near Trinity International University as well as some upper class real estate areas. The road next approaches the at-grade Milwaukee District/North Line tracks and major junction with Illinois Route 43 (Waukegan Road) while passing a shopping area on the southeast corner of that intersection. It then arrives in the last city on its journey, Highland Park, where it heads near the Prairie Wolf Slough Forest Preserve. Shortly after, it nears its end as it goes under the grade separated Union Pacific/North Line tracks and a pedestrian crossing before terminating at the well traveled, at-grade intersection of U.S. Route 41 (Skokie Highway); Half Day Road continues east without a state route designation. History Early history Half Day Road takes its name from Aptakisic, a local Potawatomi chief who allied himself with White settlers in the area. The