Illinois' Northern Boundary
historic site
- Material
- metal
- 12.7 mi off the Historic Route 66National
- 9.2 mi off the Lincoln HighwayNational
- 28.6 mi off the Illinois River RoadNational
Overlooks nearby
- Fabyan Windmill · 17 mi
- Viewing area · 25 mi
| Date | Sunrise | Golden hour | Sunset |
|---|---|---|---|
| March equinox | 06:58 | 18:29 | 19:06 |
| June solstice | 05:20 | 19:50 | 20:32 |
| September equinox | 06:42 | 18:16 | 18:53 |
| December solstice | 07:18 | 15:42 | 16:27 |
Local time (America/Chicago).
41.64121, -88.44630
Elevation 181 m (modelled from terrain)