 Following Church Street out of downtown Tobyhanna, PA 423 crosses the Delaware–Lackawanna Railroad, passing the former Tobyhanna Station and interlocking tower for the switch to the Tobyhanna Army Depot.The highway continues north of the tracks and along the side of the Army Depot into a rural portion of Tobyhanna.The name changes from Church Street to Tobyhanna State Park Road, entering the namesake park near Tobyhanna Lake.