Grundy County Highway C41 is one of the few county highways in Grundy County that run virtually across the entire county. Starting on Grand Ridge Road at the La Salle/Grundy County Line, GCH C41 heads east through Mazon to Tynan Road, where is heads south for one (1) mile. Next, GCH C41 heads east on Braceville Road to end at Old IL St Rt 129 on the east side of Braceville. GCH C41 passes through the following towns in Grundy County. Mazon
EB GCH C41 at the La Salle/Grundy County Line. EB GCH C41 east of Verona Road, GCH V10. WB GCH C41 west of GCH V10. EB GCH C41 at Mazon. EB GCH C41 east of Mazon. A street sign in Rural Grundy County. EB GCH C41 at GCH V36. EB GCH C41 near the UPRR crossing. The GCH C41 overpass over I-55 at Braceville.