At the Spring Mill Road intersection, the route becomes township-maintained and winds its way southeast. The road heads through the community of Gladwyne, where it passes homes and a few businesses, before it crosses Mill Creek and makes a turn to the north and a curve southeast in forested areas. At Hollow Road, PA 23 becomes state-maintained again and winds southeast through more wooded residential areas.
At the Spring Mill Road intersection, the route transitions from township to township-maintained roads and meanders southeast. It passes through Gladwyne, with its homes and businesses before crossing Mill Creek and making a turn north and a curve southeast into forested areas. At Hollow Road, PA 23 becomes state-maintained again and winds southeast through more wooded residential areas.